Mr. Do!

Mr. Do! is a fixed-screen maze game in which the player guides a circus clown through orchards filled with cherries, apples, and pursuing monsters. Mr. Do can follow the existing tunnels or dig new paths through the surrounding soil. Each stage can be completed in several ways: collecting every cherry, eliminating all of the regular monsters, spelling the word EXTRA, or finding a rare diamond.

Mr. Do is armed with a single Power Ball that bounces through the tunnels and destroys the first enemy it strikes. Afterward, it takes time to regenerate before it can be thrown again. A ball that becomes trapped in an inaccessible passage must instead be retrieved, leaving Mr. Do temporarily unable to attack.