Dig 'em

Dig 'em is a 1-player Dig Dug clone for the Apple II. The player needs to shovel their war through the dirt, and defeat the monsters which are found underground. Prohibiting this are two separate monster types, who will continually chase the player around. The player carries an air pump, which can be used to inflate the monsters to the point where they explode. Furthermore, rocks are scattered throughout the earth, which can be used to squash monsters. If the monsters do not find the player for several seconds, they will eventually get turned into ghosts, which are able to walk through the earth. They are invincible and cannot be killed. The player advances by killing all monsters on the level. The player has a total of 4 lives, and it's game over when all are lost.