I can't narrow it down any further than:
Alien Breed (all of them ;-) )
Breathless
Cannon Fodder
Syndicate
Moonstone
Another World
Flashback
Shadow of the Beast (bloody difficult, but I still like it)
UFO: Enemy Unknown
Probably a few others, but they're what I play the most (except Another World and Moonstone as mine are buggered).
