Obliterator

You play Drak, the last of the Obliterators (genetically enhanced machines bio
engineered for otherwise impossible missions.) Your mission is to save the
Federation from an alien spacecraft.

Obliterator is an arcade style platform action game. The game screens are
static (instead of scrolling, though you can optionally turn on scrolling
transitions between screens.) and can be maze like at times with many
locations to search. Armed with a variety of weapons, you have to board the
alien spacecraft, disable its weapons, plasma drives and shields, then escape.