I was a N64 kid so most of the PS1 games I played, I didn't play until the PS2 or much later at which point the graphics weren't good anymore. We did rent a PS1 once and played the first Resident Evil game and it was almost as big a wow moment as Mario 64 was. Where Mario 64 wowed running around in a big beautiful 3D environment, RE wowed by it's story elements, shooting mechanics, and graphics/environment.