PS2 triggers aren't analog -- does this affect tricks?
If it did, I wouldn't know, as I only ever played NiGHTS with the regular Saturn pad (late to the party, I was).
As the game was totally playable with a regular Saturn pad, I'd imagine they did not include analog trigger based tricks. Emulating an analog stick with a pad was certainly possible, but analog trigger based actions would be very tough to use with digital buttons. Of course, the PS2 pad DOES have pressure sensitive buttons all around, so if it did use such actions, they probably COULD pull something off.
What's the framerate on this? Did they shoot for 60 fps or go the lazy route?