Mighty Monkey is a vertical shooter arcade game developed by Yachiyo Electronics and released in 1982. The game is a clone of Nintendo's Donkey Kong 3, and features similar gameplay with some differences. The player controls a monkey who must shoot at a giant gorilla that tries to push down the vines. The game has three stages: a greenhouse, a jungle, and a cave. The game has some power-ups, such as a banana and a coconut, that can help the player.