Dig Dug

Dig Dug is a maze video game. Controlling the titular character, the player's objective is to eliminate the enemies on each screen; these being Pookas, red tomato-like creatures with comically large goggles, and Fygars, green dragons that can breathe fire. Dig Dug can defeat these enemies by using a bike pump to inflate them with air until they explode, or by crushing them under large falling rocks. Bonus points are awarded for squashing multiple enemies with a single rock, and dropping two rocks in a stage will cause a bonus item to appear in the middle of the screen, which can be eaten for points. Once all the enemies have been defeated, Dig Dug will progress to the next stage.