Ninja-kun: Adventure of Devil Castle
Ninja-Kun - Majou no Bouken Coverart.png
Famicom cover art
Developer(s)UPL (Arcade)
  • JP: Nippon Dexter (MSX)
Platform(s)Arcade, Family Computer, MSX, Wii (Virtual Console)
  • JP: October 1984
Family Computer
  • JP: May 10, 1985
Wii Virtual Console
  • JP: December 9, 2008
PS4 Arcade Archives
  • JP: May 15, 2014
  • NA: May 26, 2015
  • EU: July 7, 2015
Mode(s)Single-player, multiplayer

Ninja-kun: Adventure of Devil Castle (忍者くん魔城の冒険, Ninja-kun Ma-jō no Bōken) is the first video game in the Ninja-kun series. It was released for arcades, on the Famicom, and MSX by Jaleco in 1984.[1] The MSX version was the only version released outside of Japan, as it was released in Europe under the name "Ninja".[2]


Ninja-kun's Demon Castle Adventure features three upward scrolling levels that repeat and become more difficult.[1] The objective is to defeat the enemies on each screen and advance to the next screen. The player can attack with shurikens and jump on enemies' heads to stun them. Occasionally, an orb will appear and if the player collects three, a bonus level will be unlocked.


In Japan, Game Machine listed Ninja-Kid on their November 15, 1984 issue as being the second most-successful table arcade unit of the month.[3]


After Jaleco had ported the game and its sequel to the Famicom and MSX in Japan, the company created Ninja-kun's younger brother, Ninja JaJaMaru-kun and created their own series titled Ninja JaJaMaru-kun.[1] The Ninja JaJaMaru-kun series would feature several games released on various consoles and handhelds, many of the games are different genres like role-playing video game gameplay.

Ninja-Kid II

Ninja-Kid II (Rad Action)
Ninja-Kun - Ashura no Shou Coverart.png
Famicom version
Developer(s)UPL (Arcade)
Micronics (FC)
Opera house (MSX2)
  • US: World Games (Arcade, Rad Action)
  • US: United Amusements (Arcade, JT-104)
Platform(s)Arcade, Family Computer, MSX2, Wii (Virtual Console), PS4
Mode(s)Single-player, multiplayer
Arcade version of Ninja-Kid II
Arcade version of Ninja-Kid II

Ninja-Kid II, known in Japan as Ninja-kun Ashura no Shō (忍者くん阿修羅の章) and known in North America as Rad Action and JT-104, is a platform action video game first developed and published in 1987 by UPL in Japan. It is the direct sequel of Ninja-Kid. Game Machine listed Ninja-Kid II on their June 1, 1987 issue as being the tenth most-successful table arcade unit of the month.[4]


  1. ^ a b c Kalata, Kurt. "Ninja JaJaMaru-kun". Hardcoregaming101. Retrieved 2010-02-27.
  2. ^ "Ninja-kun - Magic Castle Adventure (1985, MSX, Jaleco, UPL), - Releases - Generation MSX". Retrieved 2020-05-15.
  3. ^ "Game Machine's Best Hit Games 25 - テーブル型TVゲーム機 (Table Videos)". Game Machine (in Japanese). No. 248. Amusement Press, Inc. 15 November 1984. p. 25.
  4. ^ "Game Machine's Best Hit Games 25 - テーブル型TVゲーム機 (Table Videos)". Game Machine (in Japanese). No. 309. Amusement Press, Inc. 1 June 1987. p. 21.