Dugger

A Dig-Dug clone, this game is quite fun.

Control your caveman and destroy those creatures living underground using what resembles a bike pump or of course by causing the stones to drop on them.  Of course the creatures can turn in to ghostly eyes and travel through the earth to chase you, so plan your route or get sandwiched between to fire-breathers.

Graphics are good for the year and the tune is pretty nice too regardless of it being basic - it fits the game perfectly.  If you love Dig-Dug or the like then you should enjoy this one

Some more trivia about Dugger: It was coded by Chaos, inc. of Delta Force (that's why it got original Mad Max music ), and features a sort-of-reset screen and the style of the rasters in the intro inspired a few demo groups back then!