Button Tip
When ya gotta switch from the 4 button to the 6 button,keep your index finger on the 5,and use your thumb (4) or middle finger (6). It'll work better and you'll be able to get a really high score.
Winning!!
Here are a couple of tips, I find handy for winning and best times :
1) Try to get as many powerups as humanely possible!
2) Use the ramps (they give you height, avoiding crashes).
3) Use two-player mode, you get two chances for winning and best time.
4) I have also found, that in a sexist kind of way, the boy player usually does better than the girl player.