Damn i really want to remember that game, i get these fussy memories i can't really place about it.
No it is not Riptide GP, the graphics are waaay too advanced, and is not first person. In that game i am telling you, you ride some kind of motorcycle ship inside a cave, purple and red are the most abundant colors, the graphics are Star Fox level not Star Fox 64, somewhere in between those 2, and there are no opponents, the plataformer part comes from you having to time out jumps and change routes.
EA has been fucking over way too much lately, just like Microsoft with that X-bone of theirs.
Doomroar
Yeah that's the one! it definitively had canals in a city, now i want to know the name of that game.
I also played another one when you ride a futuristic motorcycle, it had a Star Fox like graphics, a lot of big polygons, most of them purple, it was not really a racing game, it was more of a first person plataformer, you "race" toward the end but you are only racing against time.
Yeah it is a lot like NFS Underground, but this one was 1st i think (feeling like a hipster now).
Cyberdevil
Awesome. Tried some searching right now but I'm not finding anything... I know I have it on a CD though... somewhere... as for that futurustic one, could it be Riptide GP? Huh, platformer... don't think that rings a bell.
Oh you're right, three years earlier! Rockstar are one of my favorite developers too... shame EA popped up and took over.