Dig Dug

Kill enemies as Dig Dug: inflate them to bursting with an air pump or crush them under falling rocks. Hitting an enemy with the air pump, they are stunned and the player can repeatedly press a button to inflate them. If no action is taken/the player moves, the air pump disconnects and the enemy will stay stunned until deflated again. Rocks will fall after the tile beneath them is removed by Dig Dug. Watch out, he also can be crushed. Enemies can move through soil, being invulnerable, slowed and unable to attack and will return to being solid once in an empty space. As enemies are defeated, they become more dangerous, until the last one tries to escape to the top of the stage. Lives are lost upon touching a foe, "Fygar's" fire or getting squished by a falling rock. The game has 256 stages.