Ninja Kid, known in Japan as GeGeGe no Kitaro - Yōkai Daimakyō (ゲゲゲの鬼太郎 妖怪大魔境, GeGeGe no Kitaro: The Evil Yōkai Realm), is an action video game developed by Tose[3] and published by Bandai for the Nintendo Entertainment System.

The Japanese version was based on the manga series GeGeGe no Kitaro, but the game was changed to the generic "Ninja Kid" and all references to Kitaro were removed for the American version due to the source material being not well-known outside Japan.

Some bonus items also give a temporary speed boost, or an owl that shows players which door leads back to the map (instead of the mini-boss tower).

The familiars are also different, being characters from the manga: the Pegasus was originally Nurikabe, the Eagle was Konaki Jiji, and the Mirror was Sunakake Babaa.

Finally, a few of the minor enemies are different; most notably the "Pirate Ninja" found in some of the Guerilla Warfare levels was originally Nezumi Otoko, and Kitaro rides on Ittan Momen during the Dog Fight levels.