I didn't play a lot but on A500 my favorities were:
Lotus II (with my brother, great game)
Battle Squadron (again two player)
Silk Worm (two player, I was the HELI, my bro the JEEP)
Worms (with bunch of friends, custom samples, loads of fun)
Syndicate (I must admit I cheated a bit but it's a great game)
Later on A1200 I played ever less but sometimes I played:
Worms DC (even more fun)
and the best game I come back to regulary (what you can see by my avatar)
SLAM TILT
(Ace of space table is the best!)
