Pumpman

Pumpman is a 1-player clone of Dig Dug for the TRS-80 CoCo.

The player controls a small character who moves about underground, trying to destroy all of the subterranean enemies. The player digs a tunnel as they move, and if they burrow beneath boulders, these fall down crushing the player or monster underneath. The player is armed with a pump, which can inflate enemies and cause them to be destroyed. If the player has to stop inflating an enemy, they will eventually return to normal size. Enemies each start in their own section of the cavern, but they can sometimes move through solid rock to attack the player. If the player touches an enemy, they lose a life, and there are 3 lives at the beginning.