In the 80s and early 90s, the “Super Ninja-kid” series was one of Jaleco’s most prolific franchises, with several highly successful games. The Retro Collection contains : • Ninja JaJaMaru-kun (1985, NES) • Ninja JaJaMaru's Big Adventure (1986, NES) • Ninja JaJaMaru: The Great World Adventure (1990, Game Boy) • Ninja JaJaMaru: Operation Milky Way (1991, NES) • Super Ninja-kid (1994, SNES)