[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/co2mwr.jpg]]
[[caption-width-right:350:Yes, you ''do'' fight this fellow in the game.]]

''Ninja Spirit'', or ''Saigo no Nindou'' (''Last Way of the Ninja'') in Japan, is a 1988 side-scrolling [[PlatformGame platforming]] ActionGame from Creator/{{Irem}}. It's most well-known for its port on the Platform/TurboGrafx16 console as well as later re-release on the Nintendo Wii's virtual console, but also appearing as an arcade game and other consoles.

Tsukikage ("Moonlight"), a young genin in an order of shinobi headed by a "Blind Priest", has recently had RecurringDreams of a mystic beast in the presence of his father as the latter is killed by an unseen entity. Deciding to investigate what could lie behind the dream, he ultimately makes a horrifying discovery--shortly after his birth, his parents tried to leave the order with him, [[ResignationsNotAccepted only to be killed]] [[SinisterMinister by the Blind Priest himself]], who proceeded to have Tsukikage raised to be an implement of sowing discord in Japan. Tsukikage [[YouKilledMyFather tries to confront him in a ruined temple]], only for the Priest to escape and send the ''rest'' of the order--demons and undead included--to dispatch him...

Tsukikage's journey to avenge his parents and end the Blind Priest's machinations take him over seven platforming stages. He primarily uses a [[CoolSword versatile katana]] but also has access to shuriken, explosives, and a kusarigama as well as a number of power ups.

----
!!The game contains these examples:
* AdaptationExpansion: The PC Engine / [=Turbografx-16=] version of the game actually adds a whole new intro to the start, short though it is, that creates a basis for the BookEnds below. The arcade original doesn't even reference the plot or TheReveal until the ending. Though as if to compensate, [[AdaptationDistillation the actual ending scene beyond that is removed]] for the console release.
* BookEnds: The start of the game on the PC Engine release has a wolf appear after Tsukikage's father is slain by an unseen entity, howling in sadness. [[spoiler:The end of the game has Tsukikage having killed the Blind Priest that was said entity, releasing the seal that kept him a human -- [[TheReveal where he becomes said wolf]] as an okuri-okami.]]
* BubbleGun: Maxing out the katana's power turns it into a bubble-lightsaber.
* ClassicCheatCode: In the Platform/PCEngine version of the game ''Mr. Heli no Daibouken'', also by Irem, the code for up to 99 continues was I, II, II, I, Select. Entering the same code in ''Ninja Spirit'' would just display the message "Do you play Mr. Heli?" This confused some American players, since ''Mr. Heli'' was released in the U.S. only as an UsefulNotes/ArcadeGame under the MarketBasedTitle ''Battle Chopper''.
* DeadlyGas: Plumes of dangerous purple gas regularly erupt from parts of the floor and ceiling in the final stage.
* DefectorFromDecadence: Tsukikage's parents, with the Blind Priest [[ResignationsNotAccepted severely disapproving]]. [[spoiler: Given Tsukikage's actual okuri-okami nature, one or both had probably been enslaved by the Blind Priest in the first place.]]
* DescendingCeiling: The area of the fourth stage leading to the BossRoom is a long corridor with a slowly descending ceiling, with {{Mook}}s to hinder you along the way. You have to reach the end before the ceiling touches your head.
* DoppelgangerAttack: One of your attacks allows you to split into four shadowy doppelgangers of yourself, each of them capable of attacking and following the original as if reflected on a mirror.
* EnemyRollCall: There is a review of bosses at the end of the Platform/TurboGrafx16 version. However, the names are in kanji even in the US version.
* EpilepticFlashingLights: An unusually prolonged case of screen flashing appears in the ending (at least in the arcade and [=TurboGrafx-16=] versions), where TheHero [[spoiler:recovers his [[NobleWolf okuri-okami form]]]].
* EternalHero: [[spoiler:The ending text notes that the presence of malice in the minds of people means that evils like the Blind Priest will periodically appear in the future, but Tsukikage will always be around to help thwart them in turn.]]
* ExactlyWhatItSaysOnTheTin: The second boss is named Soufuki--"Twin Axe Demon". They're a tall, white-haired demon who constantly dashes at you with their twin axes leading the way.
* FlunkyBoss: [[GiantMook As tall as Makai Hanzo]] at the end of the third stage is, his sword doesn't swing that quickly, and he's not fast at all. The ''real'' problem is the Tanegashima gunners who keep coming in from the sides.
** The Nine Fuuma Clan Ninja at the end of stage five are a similar situation--the knife-throwing ninja on the edges of the kite keep coming back after being slain. You need to kill the pilot in the center who isn't throwing anything at you.
* GiantMook: Makai Hanzo is an enemy ninja twice as tall as the PlayerCharacter, wielding an equally oversized sword with ease.
* {{Jidaigeki}}: This story is set in an alternate feudal Japan.
* KiteRiding: The Stage 5 Boss Battle is with the Nine Fuuma Clan Ninja, all nine of whom are arranged on a giant flying kite emblazoned with the kanji 影 ("shadow"). Smaller kites carrying individual enemy ninja appear in the following stage.
* MeaningfulName: The kanji used for "Blind Priest" can also suggest "Avidyan Priest". In Hinduism and Buddhism, Avidya refers to a lack of enlightenment. Appropriate for a priest more interested in strife and fear than peace.
* {{Ninja}}: The main character is one, as are most of the opponents.
* OneHitPointWonder: In the Platform/TurboGrafx16 version, Moonlight has five hit points in PC-Engine mode, but only one hit point in Arcade mode.
* OrbitingParticleShield: The Wheel of Fire powerup blocks attacks with flames orbiting the player.
* OurLichesAreDifferent: The FinalBoss, the Dai Sokushinbutsu [[spoiler:that is the Blind Priest's ''actual'' body]], seems to be a variation on this. Sokushinbutsu were Japanese Buddhist monks who underwent self-mummification to ascend to a particular heaven where they could better aid humanity. ''This'' one seems to be more interested in controlling the souls of the wicked to cause various disasters--and isn't in ''any'' heaven or hell.
* RealTimeWeaponChange: This game was one of the first to have this feature - you can switch from katana to shuriken and so on without going into a menu.
* RecurringDreams: Tsukikage had these before the game's events, leading to him discovering the Blind Priest was his parents' killer. [[spoiler: The mystic wolf near his dead father was actually Tsukikage himself, not having yet shifted from okuri-okami to human.]]
* SicklyGreenGlow: The nether plumes that kill Tsukikage's father in the PC-Engine version's beginning. [[spoiler: They're also used by the [[FinalBoss Dai Sokushinbutsu]].]]
* SinisterMinister: [[BigBad The Blind Priest.]] [[spoiler: As you find shortly after the last stage begins, the Priest that Tsukikage interacted with throughout his life is actually a RemoteBody, the actual Priest having long ago become [[OurLichesAreDifferent a monstrous form of sokushinbutsu]] secreted deep within the cavern you're in.]]
* SpikesOfDoom: In keeping with its {{Jidaigeki}} theme, this game's deadly spikes are made of bamboo.
* SpreadShot: There's a power-up that allows you to throw three shuriken in an arc with each throw.
* StationaryBoss: The Asura at the end of the first stage.
* StealthPun: Probably unintentional, but Tsukikage/Moonlight can create up to three "shadow clones" which follow his every move. Moonlight is casting shadows!
* VariableLengthChain: The Rising Dragon is a kusarigama whose chain can be extended and spun to sweep across the screen.
* WolfpackBoss: The end of the sixth stage involves Ochimusha manifesting one after another.
* {{Youkai}}: A number of these pop up, such as the inugami-like entities divebombing you in stage 2. [[spoiler: Tsukikage himself is actually one, his okuri-okami form sealed by the Blind Priest from his infancy.]]
----