Sure, there are a few, but it's a very few; Ape Escape, some FPSes like Medal of Honor, not that much else. And the analog stick click buttons, are they supported by any games at all? Some PS2 and PS3 games use them, but on the PS1 they were pretty much never used. I assume that the issue was that games almost always had digital controller support (Ape Escape is the only analog-required game in the US, after all; not sure if Japan had any others), so they couldn't do that much with analog-only buttons like those... so they were just never used. You can find a way to make use of the stick in some games, but the analog click buttons? They were pretty much a waste of money on the Dual Shock 1.