Roadmap

Stage 1: Getting to Know Ninjin: Clash of Carrots and its Trophies

Ninjin: Clash of Carrots is a side-scrolling beat-'em-up developed by Pocket Trap. The game is straightforward enough, with you playing as either Ninjin the ninja rabbit or Akai the ninja fox in an effort to retrieve your village's stolen carrots from the dastardly Shogun Moe. You run, run, and run some more as you defeat your enemies with a varied and at times comical assortment of melee and throwing weapons, challenging yourself to some tough S-ranks along the way - you even participate in a TV competition to get through 50 consecutive waves of enemies.

The trophy list is very straightforward in this game. First and foremost, nothing is missable. You always have access to every stage from the world map once you've made your way through the game and so any miscellaneous trophy or S-rank can be attempted ad infinitum. This then gives you a choose-your-own-platinum-journey kind of experience with Ninjin. The following Stages will be laid out as this author undertook the platinum but the choice is yours.

Still, though the list is straightforward and unmissable that does not mean the game will not ask a good deal of you; Ninjin can be quite difficult at times. Aside from miscellaneous trophies the bulk of your time spent in achieving the platinum will be in S-ranks (see Gold Ninja Master for more information) and Oni TV (see Gold Million-Dollar Prize for more information), with another bit of effort coming from completing your arsenal and wardrobe (see Gold Sword ExpertGold Projectile ExpertGold Artifact Expert, and Gold Fashionista for more information). The platinum difficulty stems in particular from a few specific S-ranks as well as reaching wave 51 in Oni TV, both challenges expounded upon in their respective trophy sections. These tasks will challenge you to a higher level of proficiency and understanding of the game but are by no means insurmountable with the proper dedication.

Don't forget to lighten up though in stressful moments, as the charm and quality of Ninjin cannot be understated. You're on your way to a platinum you will be proud to have!

Disclaimer: All screen captures and videos in this guide belong to the author. 

Stage 2: Complete Each Stage (Optional: Achieve S-Ranks as you go)

Ninjin: Clash of Carrots features a total of 26 stages broken up between 5 Worlds which are really just different parts of the same map. Your path is completely linear and the game progressively introduces new enemies and stage events so move at your own pace; the game itself being relatively short. You will also likely receive the bulk of your trophies from this trophy stage although whether or not you choose to S-rank each stage in the game as you go may alter the order of some of the trophies you obtain. If you choose to S-rank after completing the game you will have access to more swords, projectiles, and artifacts than what you have as you go; just something to keep in mind for yourself.

Some of the trophies such as Silver The Hero you are more likely to get when going for S-ranks but as previously noted, nothing in this game is missable and the order in which you obtain many of the trophies has more to do with what you favor spending your time doing, when you feel like doing it. Keep in mind that you both have to find weapons and artifacts in random chests dropped by enemies in the stages as well as purchase them from the in-game store. Accessories are not stage drops and are only purchased from the Shady Shop which is not available immediately anyway; this is outside of a few which are given to you by completing the game and completing through to Wave 51 of Oni TV. More on all of that can be found respectively in Gold Sword Expert, Gold Projectile Expert, Gold Artifact Expert, Gold Fashionista, and Gold Million-Dollar Prize.
 
If you are following this guide and choose to finish the S-ranks apace with your in-game progression then you can skip to Stage 4. 
Clear stage 1-1.
Defeat General Jam in World 1.
Defeat the Ice Troll in World 2.
Defeat the Summoner in World 3.
Venture into the Summoner's dark world.
Defeat the final boss Sum-Moe-Ner and clear the game.
Get an S-rank medal in a stage.
Get an S-rank medal in every stage.
Collect 30 swords.
Collect 15 projectile items.
Collect 10 artifacts.
Equip an accessory.
Collect 10 accessories.
Beat stages using a sword of every class.
Reach a combo of 100.
Cheat in Moe Jr.'s challenge in stage 4-4.
Defeat 100 enemies.
Defeat 3000 enemies.

Stage 3: Complete S-Ranks

This stage is only for those who completed the game before investing fully in S-ranks beyond what ones they naturally completed. You now have access to a larger stock of swords, projectiles, and artifacts that you can use to go back to any stages you did not S-rank previously.

Some of the stages in Ninjin are noticeably more difficult than others, and what constitutes an S-rank is both a little unclear and does change depending on the World or even which stage in which World. See Gold Ninja Master for more details on S-ranks and some tips for a few of the tougher ones.
Get an S-rank medal in every stage.

Stage 4: Acquire Miscellaneous Trophies and Each World's Chests

After having completed the S-ranks you have proven yourself to be a very capable Ninjin player and deserve a bit of a respite before its most difficult trophy in the stage to come. For now, obtain any previously unobtained trophy from the previous sections if there are any, and finish the ones listed here. Some like Bronze Spear-Dodger you may have earned without thinking about it but feel free to check each trophy's individual section in this guide for further information.

Note leading into the final stage of this guide that Oni TV has its own unique swords, projectiles, artifacts, and accessories and you will not complete your collections without reaching Wave 51 therein. That being said, if you would like to pop the plat upon reaching Wave 51 then make sure you go into Stage 5 having filled out each World's collection. To see what chests you're missing, head to Options, Play Statistics, and scroll all the way down. Chests are random so keep at it if they aren't dropping, try hopping stages also.
Beat stages using a sword of every class.
Play a stage in co-op mode.
Make Corgi Jr. dizzy in the shop.
Reach a combo of 500.
Cheat in Moe Jr.'s challenge in stage 4-4.
Clear wave 6 in stage 1-4 without taking damage.
Beat a stage without using swords.
Beat a stage without using projectiles.
Beat a stage without dashing.
Spend 20000 carrots at the shop.
Spend 1000 rainbow carrots at the shop.

Stage 5: Oni TV and Completing Collections

Welcome, weary traveler, to your final challenge before you receive your platinum. If all else has been completed and collected before you start the Oni TV runs then your time with Ninjin's trophies will be finished after reaching Wave 51. This really needs to be understood so you don't gyp yourself of your platinum after what likely was a very lucky run for you to reach that point in the first place. Please see Gold Million-Dollar Prize for more information on Oni TV.
Collect all trophies.
Collect all swords.
Collect all projectile items.
Collect all artifacts.
Collect all accessories.
Play in the Oni TV Show.
Reach wave 50 in the Oni TV Show.
Platinum Carrot
Collect all trophies.
5.78%
Very Rare
Platinum
Journey of a Thousand Miles
Clear stage 1-1.
94.53%
Common
Bronze
On starting the game you are placed into stage 1-1. It is a simple tutorial on some of the gameplay basics of Ninjin which, by the time you earn the platinum, you will no doubt become quite the expert on. Welcome yourself to the journey!
General Jammed
Defeat General Jam in World 1.
53.32%
Common
Bronze
General Jam is found in 1-7 "Showdown at the Plains!" and is the first story boss. He rides in a "tank" with a drill on the front of it and charges at you from whichever side of the screen he had previously charged to. Ads will also appear from the sides so by maintaining even slight situational awareness you will be able to easily handle this fight. When Jam is about to charge you from offscreen a caution mark will appear giving you time to respond. 
Ice Trolled
Defeat the Ice Troll in World 2.
38.85%
Uncommon
Bronze
The Ice Troll is found in 2-6 "Showdown at the Mountains!" and is the second story boss. He is upset that you, Moe Jr., and the Summoner have been wreaking havoc around his neighborhood and having been given the Ice Stone by the Summoner he decides to take his frustrations out on you.

The fight can be broken up into three phases which scale up his move set. In the first phase he only has two attacks: A single dash attack and a faster triple dash attack. He does have a tendency to jump around but will often remain still either when preparing to attack you or immediately after attacking you. Your own dash attack will make simple work of this phase. Do note that as with a lot of Ninjin you can tell what's going to happen from audio queues. The telegraph for the triple dash is a higher-pitched version of his regular windup noise.

Phase 2 introduces a new attack from him in the form of ice spawning out of the ground. He will always begin by forming a wall to enclose you and subsequently dash attack you. You can take this opportunity to throw your projectiles at him but do note that the ice can form underneath you so be aware of the second or two you have to move before it damages you. You can dash through formed ice but you cannot touch it or you'll take damage.

Phase 3 introduces his final attack which are slow-moving blue fireballs which you will have become familiar with by this point in World 2. He always starts by throwing a few waves of them at you unless interrupted. You can use this chance to spam your projectiles at him if you are confident enough in dodging the fireballs but be aware that he will also summon ice underneath you after not too long. This phase is just a culmination of the previous two phases and so with a little practice you'll get through just fine.
Summoned Back to the Grave
Defeat the Summoner in World 3.
26.64%
Uncommon
Bronze
The Summoner is found in 3-6 "Showdown at the Graveyard!" and is the third story boss. A little eerie, this one, but he also isn't much for getting his hands dirty, choosing instead to let a host of undead minions do his dirty work.

The fight is actually very straightforward. Summoner is shielded except for particular moments in the fight and while shielded is immune to damage. As the name suggests he will summon minions to fight you, of which there are two kinds: Boomerang enemies and sword enemies. The boomerang enemies are weaker but appear in large numbers and of course attack at range, so dash attacking or having a projectile with piercing properties is ideal here.

After a few waves of mooks the Summoner will become vulnerable for a time while still summoning ads. He himself cannot hurt you though so attack him as much as you can. As the fight progresses he begins to summon the sword minions which cannot be killed until the swirling totems around them are destroyed. It's a rinse-and-repeat fight and one of the easier boss fights really.
Plot Twist
Venture into the Summoner's dark world.
23.72%
Uncommon
Bronze
This trophy from 4-4 "Showdown at the Castle!" is actually not obtained from a boss fight as the previous story trophies were but instead from a gauntlet stage. Moe Jr., who is not your biggest supporter, has decided that all of your various tricks and cheats have been your saving grace from his and his father's armies. Having had enough he issues you a challenge in this stage: Choose a Zen type to subdue one of your modes (sword, projectile, or dash) for a few rounds at a time. Having one of your abilities taken away from you of course makes this stage quite tough, but as the waves progress he becomes increasingly frustrated with your survival and ups the ante to only letting you choose one ability to keep, removing the other two.

Unless...

There's a bit of a cheeky strategy you can employ in this stage which is also tied to Bronze I Make My Own Rules which lets you keep all three abilities despite what Moe Jr. has in mind. When the Zens are on the screen you can simply defeat all three of them before the remaining one or two that are supposed to hamper you float away. This opens up the stage to play like the other ones but it can still be challenging so stay on your toes. Of course if you want the challenge then feel free to play Moe Jr.'s game.
The World is Saved!
Defeat the final boss Sum-Moe-Ner and clear the game.
18.71%
Rare
Gold
Sum-Moe-Ner is found in 5-3 "Showdown at the Dark World!" and is the fourth and final story boss. Don't be confused if you are reading this before actually reaching World 5 as it does not appear until after you complete World 4 which has no story boss per se. Certainly the game's hardest boss, Sum-Moe-Ner will ask more of you as a Ninjin player than most other stages but if you have made it this far then you can certainly take him on. Unlike the first go with the Summoner, this time he is ready and willing to directly involve himself in the fight and will employ a number of tricks to take you down.

The fight has three phases and there is a loadout-specific recommendation this author might make: Take the Dark Stone. Upon filling the meter you retain control of your actual character unlike with the other two Stones but the damage you deal to enemies is increased dramatically. The difference between an attempt without the Dark Stone and an attempt with the Dark Stone is very much, and not honest. Taking care to attempt to stack the meter for phases two and three is a strategy you may need to employ as phase 3 especially can become quite chaotic.

There are five things in particular that he will do during the first phase: Quick teleport, laugh at you, summon homing fan blades, summon indestructible projectile-firing masks, or go berserk and charge at you. When he teleports there is no way of knowing where he will appear and he does only remain for a moment, but this is one of your only chances to attack him. As for when he laughs at you it's the same as his quick teleport but he just stands still for longer, letting you hit him more. Unless there is something else on the screen to damage you then during these two moves he cannot hurt you. If he summons the fans they will appear in one of two patterns: left and right or up and down. Either way they remain stationary at first but one at a time begin flying at you, alternating sides. They are larger projectiles but they move slowly enough to be dodged with enough ease. If he summons masks they will always be white in this phase which means they shoot slow-moving bullets at you. Finally if the boss turns red he will start teleporting in from the left or the right and dash attack you. If you are even vaguely conscious of this then it should not be particularly difficult to dodge. The rub is that once Sum-Moe-Ner begins to take damage he can stack any of these moves so attempt to deal damage as quickly as possible.

Phase two is a ramped up version of the first. He spawns masks on his body and now when he teleports he will often leave behind a single fan blade which flies at you. He will also more permanently leave masks on the floor but this time they, along with the ones on his body, can be different colors which shoot projectiles differently. Red means they will come out in two beams and will turn around the mask so you will have to dodge through them. Green creates a circle of projectiles which move outward. If you are far enough from the green mask you can slip between the bullets but you can also of course dodge through them. Yellow masks create a stream of bullets which you will have to dodge through similar to the red mask's pattern but they fly straight in whichever direction the mask is facing. Having a mostly-full special meter going into this phase will shorten its duration and spare you a lot of trouble.

Phase three is a straight bullet hell event. Sum-Moe-Ner turns into a ball of masks and can utilize any color on any one of them. He will always start with a few yellow masks and spins around, creating a large field of bullets to avoid. If you ended the second phase by using your Dark Stone then you will need to completely refill the meter here but strictly speaking if you throw caution a bit to the wind and charge attack him for all its worth then your meter will fill quickly and the fight will simply end then and there. 
Skilled Ninja
Get an S-rank medal in a stage.
85.48%
Common
Bronze
Grinding S-ranks may end up representing a large part of your platinum effort but many of them are actually very easy; the first level is very simple and chances are good you walk away from 1-1 with this trophy. See Gold Ninja Master for more information on S-ranks.
Ninja Master
Get an S-rank medal in every stage.
5.93%
Very Rare
Gold
S-ranks are where a lot of the challenge in Ninjin comes from. Out of the 26 missions in the game most of them are actually fairly easy to S-rank and you will likely get a lot of them without specifically trying. That being said there are a few noticeably more difficult missions. This guide will highlight six missions in particular, each receiving either written tips, a video, or both:

Tips for 3-1:
A kunai, such as the Green Kunai, can be made good use of in this stage, eliminating rows of enemies quickly. As for your sword, a strong weapon with a long reach makes sense here. If you are S-ranking the stages as you progress the game you might choose the Golden Ninja Katana. As with every stage, learning enemy spawns and patterns is crucial. The best advice for the final wave after the explosion mini game is to run a circle around the screen, avoiding the fireballs and dodging the Kuma when they jump. Weaving in dash attacks after you dodge the set of attacks is key. Enemies that appear from offscreen should not be focused as they will respawn anyway and the longer you spend in this fight the higher the chance of you taking damage. Your focus is on dodging fireballs and jumps while making intelligent use of your dash attacks.

Tips for 3-4:
Choose your strongest shuriken mostly for the Kuma at the end. This stage introduces a new cannoneer, Danhei, and this time they are bombs that explode shortly after hitting the ground. They can be hit with a melee weapon like the cannonballs but only do this if you are confident you won't miss. The biggest threats are Wave 5 with multiple Danheis and Wave 8 with a few Danheis and a lot of Tofus. When facing either of the bomber-type enemies you have to anticipate where the projectile will land so when facing such high numbers of them your best bet will be in making liberal use of your dash attack and circling the map. As for the Tofu wave, killing the Danhei is likely your priority as the damage they do to the Tofus is less helpful than the damage you could take if too many Tofus split too quickly.

Clear these waves with as little damage as possible and reach the final round. There is a surge of Danheis that appear at one point so in between enemy spawns it is ill-advised to simply be standing still. When the Kuma spawns at the end he will always talk to you for a brief moment. This will allow for as rapid a shuriken storm as you can muster and if you are lucky he will be at half health or less before he even starts moving. If you kill him quickly enough no other enemies will even spawn.

Tips for 4-3:
There are stages in which piercing projectiles make sense but 4-3 is not one of them and you should instead choose a strong single-hit projectile such as the Pink Shuriken. It does good damage at a very low stamina cost per throw. Any time you see a Zen or a Danhei they should of course, within reason, be your priority target. The Wave 7 Bazookas will make your life very difficult hence the quick mop-up with projectiles. Boomerangs can be a bit unwieldy but if you favor them in any circumstance then use what you are most comfortable with. At the end of Wave 8 you should caution yourself to position the enemies so that you run the least risk of blowing yourself up but you can dash-hit-dash to avoid explosions if you are quick enough and can spare the stamina. See the video below for a visual run through of the stage.

S-rank Run of 4-3


Tips for 4-4:
There's no need to be a hero here; you may want to cheat Moe Jr.'s game and just kill all three Zens each time. The stage can be difficult enough to S-rank without needlessly placing restrictions on yourself. The end of Wave 4 can be an S-rank killer but if you know the enemies are coming you can at least be prepared to move and strike to minimize the threat as best as possible. Your run does not need to be perfect, as this author himself did not perform particularly well but still managed the S-rank. See the video below for a visual run through of the stage.

S-rank Run of 4-4


Tips for 5-1:
"Luckily" for you the harder part of this stage is the initial four Waves. When the two Bazookas are firing quickly it can be difficult to keep the beams stacked to avoid more of the screen being damage zones. Wave 10 against the Ice Troll can actually be made quite harmless with the proper projectile. The Pink Shuriken is always a good choice for single-target encounters. See the video below for a visual run through of the stage.

S-rank Run of 5-1


Tips for 5-3:
By this point you've got your run of most weapons and accessories in the game. Coming in with your hardest hitting sword, a Dark Stone, and a good single-target projectile is the best loadout possible. Achieving as close of a full special meter as possible just before the beginning of the second phase will effectively eliminate it, and it is this phase which can tend to be the hardest to make it through within S-rank territory. Even if you take damage in the process of filling the meter back in the third phase (as evidence in the video below) you will likely fill it so rapidly that the damage will not negate the S-rank. See the video below for a visual run through of the stage.

S-rank Run of 5-3


Included here is this author's list of S-ranks which includes all aspects of what counts towards the grade at the end. Please be aware that the singular most important statistic in an S-rank is your damage taken. As you progress the story, except for some missions in the latter Worlds, the damage you can take before that S becomes an A diminishes. This forces you to improve but you must also keep an eye on all other stats. You also need to make use of your projectiles and swords enough because otherwise it will count against your rank.

8893f1.jpg81f4fa.jpgc0cae9.jpg
Sword Enthusiast
Collect 30 swords.
31.85%
Uncommon
Bronze
There are 101 swords in Ninjin: Clash of Carrots. Collecting only 30 of them will happen naturally as you progress. See Gold Sword Expert for more information.
Sword Expert
Collect all swords.
6.29%
Very Rare
Gold
There are 101 swords in Ninjin: Clash of Carrots. Swords are purchased through Corgi Jr.'s Shop on the lefthand table. Like the other collectible facets of the game, swords do also drop from chests etc. Swords, which actually include not-sword weapons like knives and spears, are your melee weapons. As there are so many you end up with, you can really outfit your character with which feels right for you even if that just means going with the Adventure Sword because you love Adventure Time so much. Keep in mind of course that they do have varying power levels, reach, speeds, swing patterns, critical hit chances, and elemental types so unfortunately some become a bit useless as the game progresses.

The reason for this being one of the last possible trophies you obtain in Ninjin is because even after purchasing all the swords from the shop, obtaining every chest from all Worlds, and beating the game, you will not have a complete set. The final swords you are likely to come by are those acquired from clearing up to Wave 50 in Oni TV (see Gold Million-Dollar TV for more information) or from completing all S-ranks (see Gold Ninja Master for more information).

The order you do anything in Ninjin is not important because nothing is missable. To that end, if you find yourself missing swords it is simply a matter of checking which between the shop, beating the game/S-ranks, Oni TV, or chest drops you have not completely done yet. 
Projectile Enthusiast
Collect 15 projectile items.
29.70%
Uncommon
Bronze
There are 40 projectiles in Ninjin: Clash of Carrots. Collecting only 15 of them will happen naturally as you progress. See Gold Projectile Expert for more information.
Projectile Expert
Collect all projectile items.
5.83%
Very Rare
Gold
There are 40 projectiles in Ninjin: Clash of Carrots. Projectiles are purchased through Corgi Jr.'s Shop on the righthand table. Like the other collectible facets of the game, projectiles do also drop from chests etc. As the name suggests, projectiles are your ranged option in combat. Between the 40 of them you will find some are simply higher tiers of the same archetypical projectile, such as NinjaShuriken, Orange Shuriken, and Pink Shuriken, which progressively take more stamina per use but output higher damage. Others are more gimmicky ones like the Decoy Doll type which for a huge stamina cost will throw out a decoy character, attracting enemies to it and exploding. Which projectile you use is to your taste and what works best in different situations.

The reason for this being one of the last possible trophies you obtain in Ninjin is because even after purchasing all the projectiles from the shop, obtaining every chest from all Worlds, and beating the game, you will not have a complete set. The final projectiles you are likely to come by are those acquired from clearing up to Wave 50 in Oni TV (see Gold Million-Dollar TV for more information) or from completing all S-ranks (see Gold Ninja Master for more information).

The order you do anything in Ninjin is not important because nothing is missable. To that end, if you find yourself missing projectiles it is simply a matter of checking which between the shop, beating the game/S-ranks, Oni TV, or chest drops you have not completely done yet. 
Artifact Enthusiast
Collect 10 artifacts.
35.94%
Uncommon
Bronze
There are 35 artifacts in Ninjin: Clash of Carrots. Collecting only 10 of them will happen naturally as you progress. See Gold Artifact Expert for more information.
Artifact Expert
Collect all artifacts.
5.88%
Very Rare
Gold
There are 35 artifacts in Ninjin: Clash of Carrots. Artifacts are purchased through Corgi Jr.'s Shop on the center table. Like the other collectible facets of the game, artifacts do also drop from chests etc. Artifacts are passive buffs to your character that range from additional life to increasing attack power at the cost of carrots and much more.

The reason for this being one of the last possible trophies you obtain in Ninjin is because even after purchasing all the artifacts from the shop, obtaining every chest from all Worlds, and beating the game, you will not have a complete set. The final artifacts you are likely to come by are those acquired from clearing up to Wave 50 in Oni TV (see Gold Million-Dollar TV for more information) or from completing all S-ranks (see Gold Ninja Master for more information).

The order you do anything in Ninjin is not important because nothing is missable. To that end, if you find yourself missing artifacts it is simply a matter of checking which between the shop, beating the game/S-ranks, Oni TV, or chest drops you have not completely done yet. 
Feeling Pretty
Equip an accessory.
54.81%
Common
Bronze
Accessories are aesthetic pieces you collect throughout the game and buy from the Shady Shop with rainbow carrots. There are many interesting ones to obtain and Ninjin or Akai will certainly look sharp no matter what you choose. See Gold Fashionista for the rundown on collecting all accessories. 
Fashion Student
Collect 10 accessories.
29.19%
Uncommon
Bronze
There are 35 accessories in Ninjin: Clash of Carrots. Collecting only 10 of them will likely happen naturally as you progress. See Gold Fashionista for more information.
Fashionista
Collect all accessories.
5.83%
Very Rare
Gold
There are 35 accessories in Ninjin: Clash of Carrots. Accessories, unlike swords, projectiles, and artifacts, are only purchasable from the Shady Shop which is not immediately available to you at the start of the game. Corgi Sr. also does not take regular carrots but instead rainbow carrots which are far less plentiful but still not difficult to come by. Like the other collectible facets of the game though, accessories do drop from chests etc. Accessories are merely aesthetic pieces for Ninjin or Akai so by all means swap around when you get one you like.

The reason for this being one of the last possible trophies you obtain in Ninjin is because even after purchasing all the accessories from the Shady Shop, obtaining every chest from all Worlds, and beating the game, you will not have a complete set. The final accessories you are likely to come by are those acquired from clearing up to Wave 50 in Oni TV (see Gold Million-Dollar TV for more information) or from completing all S-ranks (see Gold Ninja Master for more information).

The order you do anything in Ninjin is not important because nothing is missable. To that end, if you find yourself missing accessories it is simply a matter of checking which between the shop, beating the game/S-ranks, Oni TV, or chest drops you have not completely done yet. 
Versatile Swordsman
Beat stages using a sword of every class.
35.28%
Uncommon
Bronze
This may well come naturally to you as you play through the story. The different swords are so much fun to experiment with that choosing any random one enough times will complete this requirement without you even paying attention. But if you are attempting this trophy then simply make sure to complete a stage using a Knife, Standard, Heavy, and Spear. 
A Helping Hand
Play a stage in co-op mode.
49.23%
Uncommon
Bronze
Ninjin: Clash of Carrots can be played in online or local co-op. This trophy only requires that you play one stage in co-op and that can be with a second controller if you've got one. Ninjin is a very fun game to play casually with friends but keep something in mind: How either of you does affects the results at the end of the stage. Also, if one of you dies the stage is over for both of you. In this author's experience some of the tougher missions can actually become more difficult with the inclusion of a second player but your mileage may vary. 
Consolation Prize
Play in the Oni TV Show.
59.25%
Common
Bronze
Oni TV is an in-universe game show which, in gameplay terms, acts as an endless mode. Enemies are random and so is your selection of weaponry and artifacts. See Gold Million-Dollar Prize for more information.
Million-Dollar Prize
Reach wave 50 in the Oni TV Show.
7.98%
Very Rare
Gold
Oni TV will likely be one of your last hurdles in obtaining the platinum, if not the last. You gain access to it fairly early on but the challenge in reaching through to Wave 51 is likely more than what the average Ninjin player is capable of at that point in the story. That being said, it is challenging no matter when you choose to do it.

For this trophy you need to fight through 50 waves of randomized enemies, starting with the base equipment you are given in 1-1. Every three stages you are given a choice between three random pieces of gear and can pick one to take with you until you lose or quit. These random selections of gear are swords, projectiles, and artifacts so luckily you will not get a pointless accessory in the mix, but at any time no matter how far into Oni TV you get, well, you can end up with some duds. Part of the "problem" is that you are given 10 seconds to choose and the game does not tell you what the things you are choosing between do or how strong they are. Before you go into Oni TV it is highly recommended that you make yourself as aware of every single weapon, projectile, and artifact in the game as possible because you do not want to waste an artifact slot on something that affects your special meter, if you don't have an Elemental Stone.

Important: This trophy does only require you to reach Wave 50, but to receive the final three unique Oni TV drops you will have to actually clear Wave 50, and so it is once you reach Wave 51 will you be safe to stop.

That being said there are a recommended few things to watch for which can turn a very difficult challenge into an actual joke:
  • Cursed Skull,+,++
    • These are artifacts which grant life per enemies defeated. The base version of this artifact gives 1 life per 3 enemies and while that can be helpful it will likely not save a run. The same can be said for the + version which gives 1 life per 2 enemies but it is recommended nine times out of ten that should you see either of these you take them. The true dishonesty, the true muchness, is the ++ version which gives 1 life per 1 enemy defeated. You can only understand what a difference this makes once you are fortunate enough to find one. The best part is that the effect stacks with multiple of any like-effect artifacts.
  • Huge Life/Stamina Orb
    • These artifacts will grant enormous extra amounts of life and stamina. A Huge Life Orb is second to a Cursed Skull++ but if you find one of these it is almost always the pick. The stamina version helps enormously as well, adding effective dodges and dash attacks which is just further damage mitigation and faster round clears.
  • Merchant's Gauntlet
    • This artifact increases your power by 50% at the cost of 3 carrots per enemy hit. The penalty is easy enough to offset and the bonus damage makes an enormous difference. 
  • Blue Makibishi
    • This is a spike projectile which you scatter on the ground and if an enemy walks over it they take damage. The Blue Makibishi is the strongest type and while the stamina cost adds up the damage dealt to enemies is very good. 
  • Glossy Bouncy Shuriken
    • This projectile at first seems a bit odd but it is a powerhouse. You throw out individual, very slow moving orbs that do not disappear if they hit an enemy. They require little stamina and can turn the entire floor into a minefield for enemies who will likely just bounce from one to another while you also hit them with your sword. 

Unfortunately these are simply recommended pieces of gear to look out for and not things which are guaranteed. If you do not have at least a half decent weapon or artifact by Wave 10 you might consider ending the run. If you want the practice then keep going until you fail. The below video is what you can do with proper skill for the challenge and the perfect loadout.

Million-Dollar Prize Video Guide

Spin Me Around
Make Corgi Jr. dizzy in the shop.
31.44%
Uncommon
Bronze
It isn't immediately made clear to you what makes Corgi Jr. dizzy but it is very simple: All you have to do once you save him in World 1 and have access to his shop is switch screens between him and your loadout, or him and the Shady Shop page a few times really quickly using L1 /R1  and the trophy will pop. You may not even see him becoming dizzy if you're cycling too fast but the trophy will pop all the same. 
Combo Newbie
Reach a combo of 100.
41.62%
Uncommon
Bronze
A combo is built up when consecutive hits occur. This can be with a sword or a projectile. The combo meter will reset if either too much time has passed between hits or if you yourself are hit. See Silver Combo Master for more information.
Combo Master
Reach a combo of 500.
11.96%
Rare
Silver
A combo is built up when consecutive hits occur. This can be with a sword or a projectile. The combo meter will reset if either too much time has passed between hits or if you yourself are hit. It is unlikely that you will reach a combo of 500 naturally. Included here will be a very simple method of obtaining the necessary combo value. The specific loadout is: Tentacle Sword and the Ice Stone on 3-1. Turns out the Tentacle Sword has a purpose in this game after all!

Combo Master Video Guide

I Make My Own Rules
Cheat in Moe Jr.'s challenge in stage 4-4.
16.51%
Rare
Bronze
Stage 4-4, which happens to be one of Ninjin's harder S-ranks (see Gold Ninja Master for more information), is something of a gimmick stage. Moe Jr. informs you that he is taking away some of your ninja tricks and gives you a choice to select and defeat two Zens (the enemy that disables either your sword, projectile, or dash), but by the end of the stage you only get to keep one ability. Every few stages he lets you choose again. From left to right you can defeat either the sword Zen, the dash Zen, or the projectile Zen which are separated by a chain and float off if left alive- but not immediately! 

The cheeky bit here is that if you are quick enough you can defeat two, or even all three Zens before the unchosen ones float away unable to be hit. By defeating the three of them you get both a complaint from Moe Jr. and the trophy. Get used to where the Zens spawn on the floor and start left and move right.
Spear-Dodger
Clear wave 6 in stage 1-4 without taking damage.
31.75%
Uncommon
Bronze
The spear enemy in Ninjin, called Porkpike, will haunt you from 1-4 onward. It will move rightward slowly with its spear drawn until you come in its line of sight at which point it will charge you and slowly return to the left side of the screen. You will come to find several Porkpike events scattered throughout Ninjin but for the sake of this trophy you need to evade a handful of waves of Porkpikes. You may obtain this trophy without thinking as you play for the S-rank but if you should return to this postgame you will have access to the Stamina Generator artifact which grants you infinite stamina. All you need to do for the trophy is dash towards the opposite North-South of the floor from where the Porkpikes are coming from and maybe with your eyes slightly wide you'll have little trouble here.
Sharp Aim
Beat a stage without using swords.
25.82%
Uncommon
Bronze
This trophy along with Bronze The Power of the Sword and Bronze The Slow Way can be obtained on any stage you feel confident enough to not use your sword, projectile, or dash. You can tackle each one individually or stack two of them to cut a few minutes off of your platinum journey. Once you've beaten the game and have access to some very strong gear then you can easily return to these trophies and marvel at how far you've come.
The Power of the Sword
Beat a stage without using projectiles.
39.83%
Uncommon
Bronze
This trophy along with Bronze Sharp Aim and Bronze The Slow Way can be obtained on any stage you feel confident enough to not use your sword, projectile, or dash. You can tackle each one individually or stack two of them to cut a few minutes off of your platinum journey. Once you've beaten the game and have access to some very strong gear then you can easily return to these trophies and marvel at how far you've come.
The Slow Way
Beat a stage without dashing.
31.03%
Uncommon
Bronze
This trophy along with Bronze Sharp Aim and Bronze The Power of the Sword can be obtained on any stage you feel confident enough to not use your sword, projectile, or dash. You can tackle each one individually or stack two of them to cut a few minutes off of your platinum journey. Once you've beaten the game and have access to some very strong gear then you can easily return to these trophies and marvel at how far you've come.
The Good Guy
Defeat 100 enemies.
88.85%
Common
Bronze
Defeating enemies is the name of the game in Ninjin. 100 enemies is a drop in the bucket. See Silver The Hero for more information.
The Hero
Defeat 3000 enemies.
28.27%
Uncommon
Silver
3,000 enemies may sound like a lot, but you will certainly hit that tally before completing the game if you are going for S-ranks as you go. If you are saving your S-rank grind for after completing the campaign then you will inevitably reach that 3,000 mark along the way. Past this 3,000 there will be many more enemies slain.
Big Spender
Spend 20000 carrots at the shop.
26.99%
Uncommon
Bronze
20,000 carrots is nowhere near as much as you will need to spend in order to purchase everything from the shop for Gold Sword Expert, Gold Projectile Expert, and Gold Artifact Expert. This trophy will come naturally if you buy weapons and projectiles from the Shop here and there as you progress the story. Fortunately though, carrot acquisition is very easy with the Lucky Carrot and Lucky Carrot+ artifacts should you need to grind. If you head to 3-1 with the Lucky Carrot and Lucky Carrot+ equipped you can rake in ~3,500 carrots in four minutes. Once you beat the game and have access to the Stamina Generator artifact for infinite stamina you can farm very fast indeed.
Shady Business
Spend 1000 rainbow carrots at the shop.
25.26%
Uncommon
Bronze
You will need many more than 1,000 rainbow carrots for Gold Fashionista. This trophy will come naturally if you buy accessories from the Shady Shop here and there as you progress the story. Fortunately though, rainbow carrot acquisition is very easy with the Lucky Carrot and Lucky Carrot+ artifacts should you need to grind. If you head to 3-1 with the Lucky Carrot and Lucky Carrot+ equipped you can rake in ~90 rainbow carrots in four minutes. Once you beat the game and have access to the Stamina Generator artifact for infinite stamina you can farm very fast indeed.