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. 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.