Rampart
classic real time strategy game of castle building and cannon firing, either against ships or rival castles.
http://www.youtube.com/watch?v=1sT3QDQMsow

Wonderboy in Monster World
epic platform rpg
http://www.youtube.com/watch?v=CXQN0HwUfdY

Loaded
pop will eat itself did the soundtrack, 2000ad created the characters, there was lots of shooting
http://www.youtube.com/watch?v=zyXTzvIVnjc

MDK
innovative, great to look at, fast and action packed probably belongs in the top 10 best playstation games
http://www.youtube.com/watch?v=RcrkHN3C44I