Yeah the PlayStation version is completely different, I am not even sure if most of the tricks would work on PlayStation.
Check the resources tab, it contains a patch and some settings that should fix crashes.
Yeah that's true, if it doesn't start at all it might be OS-related?
I assume you've tried compatability modes. You could try the GOG version, but that worked slightly worse for me than the Steam version.
Yeah sometimes Glidewrappers like nGlide work, I know games from that time, like Messiah, won't run without a Glidewrapper. I can't remember if Urban Chaos runs that way though.
Once you get a gun you shouldn't need to do the jump glitches anymore, just the gun upwarps, which are much easier.
That's cool, I don't know if Bulbipop sitll comes here, but you can message him on his videos and he should respond, maybe he has another idea. He knows much more about the game settings than I do.