Dig Dug is an arcade game developed and published by Namco in Japan in 1982. It runs on Namco Galaga hardware, and was later published outside of Japan by Atari, Inc..
The player’s character is the eponymous Dig Dug, dressed in white and blue and able to dig tunnels through destructible environments. Dig Dug will be killed if he is caught by either a Pooka or a Fygar, burned by a Fygar’s fire, or crushed by a rock he has loosened.
A partially inflated monster will gradually deflate and recover after a few seconds, during which time Dig Dug can pass safely through it. The monsters normally crawl through the tunnels in the dirt but can turn into ghostly eyes and travel slowly through the dirt. The last enemy in a round will try to escape off the top left of the screen – and if he succeeds, the potential points are lost.