Replays for races would be great, as some of the stuff that happens is spectacular so being able to watch it back would be wonderful.
The original is always the best. This game should be remade in HD for the ps3 as its simply awesome. The ability for online play would also be very well received.
Fighting someone with powerups greater than yours is really unbalanced. There should be an option to turn off powerups or only use ones that both of you have.
