Mickey Mouse is working part-time selling balloons in order to buy a present for Minnie, whose birthday is a few days away.

Kid Klown and his family are on their way to perform in a circus when they meet the magician Night Mayor (a pun on "nightmare").

The player character, Mickey Mouse/Kid Klown, carries balloons with which he can attack, jump higher, or float.

In the original, the boss in the first stage is one of the vultures from The Jungle Book, while the Kid Klown version features an owl.

The third stage (based on the folk tale Jack & the Beanstalk) has Rumplewald the giant from the cartoon Giantland as the end boss; the American version replaces him with a cyclops.