Ninja Kid Nintendo

Ninja Kid is a ninja-themed action platformer from Bandai. However, in Japan, it is called Gegege no Kitarou: Youkai Daimakyou ("Gegege no Kitarou: Great Ghost Haunts of Evil Men") and is based on a manga and anime about a young youkai (Japanese ghost or spirit) trying to prevent an all out war between the youkai and the humans.

Bandai was very much in the licensed game market back in the NES era, and so would produce many games based on popular anime licenses. Though keen to increase sales by publishing the game overseas, Bandai felt the Gegege no Kitarou license had little to no recognition in the States, so they changed a considerable amount of the resources to create a ninja-themed game instead, as ninjas were popular at the time. Bandai's earlier game Chubby Cherub had also undergone a similar process for its localization.