Ninja JaJaMaru-kun NES box art

Nintendo Entertainment System · Action / Platformer

Ninja JaJaMaru-kun

SystemNintendo Entertainment System
Released1985
GenreAction, Platformer
DeveloperJaleco
PublisherJaleco
Players1–2 players
CommitmentAn evening or two (Roughly 1–6 hours to see it through)
LegacyWell-known · legacy score 9

Released for the Nintendo Entertainment System in 1985, Ninja JaJaMaru-kun is an action game developed by Jaleco. It blends action and platformer elements.

It belongs to the NES's earliest wave of games. Other notable NES releases from 1985 include Super Mario Bros., Excitebike and Ice Climber.

Jaleco also made City Connection, Field Combat and JaJaMaru no Daibouken for the NES.

Ninja JaJaMaru-kun supports up to 2 players, whether that means taking turns or going head-to-head.

Pick it if…

  • you want to fight, blast and test your reflexes
  • you have time for an evening or two (roughly 1–6 hours to see it through)
  • you have a friend to play against

Maybe skip it if…

  • you prefer slow, thoughtful games over reflex tests

What playing Ninja JaJaMaru-kun is like

Action games test reflexes and nerve. Expect fast enemies, tight controls and stages you clear by reacting quickly and learning enemy patterns.

Tip for newcomers: Retro action games are often short but tough. Treat early deaths as practice runs; every attempt teaches you where the next threat comes from.

Ninja JaJaMaru-kun gameplay screenshot on NES
In-game screenshot (NES)

Ninja JaJaMaru-kun cheats & codes

6 codes on file (Emulator memory codes). Here are a few Emulator memory codes codes to start with:

Win Level Now0028:00
Infinite Lives0021:02
Infinite Time002A:78
Stop Fireballs0440:00
Always Have 9 Souls0025:09
Hit AnywhereAAVPEZPZ SXXPXXSE AANPEZTA

See all Ninja JaJaMaru-kun cheats

Ninja JaJaMaru-kun walkthroughs & guides

Stuck, or want to go deeper? These trusted sites have full walkthroughs, completion times and more for Ninja JaJaMaru-kun.

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Playing NES games today

NES games are short on paper but often famously tough, so expect to replay levels and learn patterns. Many first-party titles are available through Nintendo Switch Online, original cartridges remain easy to find, and you can play backups of games you own in an emulator such as Rec0m88.

Ninja JaJaMaru-kun FAQ

When did Ninja JaJaMaru-kun come out on the NES?

Ninja JaJaMaru-kun was released for the Nintendo Entertainment System in 1985.

Who made Ninja JaJaMaru-kun?

It was developed by Jaleco.

Is Ninja JaJaMaru-kun multiplayer?

Yes. Ninja JaJaMaru-kun supports up to 2 players.

How long does Ninja JaJaMaru-kun take to play?

As an action game, Ninja JaJaMaru-kun typically falls into the "An evening or two" category: roughly 1–6 hours to see it through. Your time will vary with skill and how much you explore.

Read more about Ninja JaJaMaru-kun on Wikipedia. Facts on this page are compiled from the open libretro database and Wikidata; "legacy score" reflects how widely a game is documented across Wikipedia's language editions. Spotted an error? Let us know.

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