IMO, there are 3 games that every self-respecting gamer should play. Well, there are about 300 I can think of, but try these 3.
1: Manic Miner for the Spectrum
2: Frogger (for whatver platform)
3: Jedi Knight: Dark Forces 2
They're not for PSX, in fact I bet you've never even heard of a playstation (grr the youth of today), but u might wanna get an emulator and have a blast.
visit the Lucky Despot Boyz Jedi Knight Clan site www.ldb.org.uk