The physics was a little awkward but I got used to it. It was kinda a slow paced game but the graphics were good, a few minor glitches. Fix those up and I think you have a pretty decent game! Keep it up!
Some glitches though, the bottom flickers sometimes, and I think you need to reduce the time after the person reloads after he dies, and change the 'bonus' into a time, bonus points are pointless really, and also, the courses r too diffucult, I really just wanna take the bike and do awesome tricks whilst riding really fast.
Two quick things
1) Is it just me or do the controls seem to flip flop between to stiff, then suddenly to slick.
2) Why is there just 5 lives for the entire campaign...
(creates a large difficulty curve that really isn't needed)
and on a side note once you think about those two things,
I do like your background/theme, it is quite appropriate, coming up on Halloween and all. But on more then one occasion, the foreground didn't load correctly and I died cause part of the track was a little above the rest. which caught my tire, which caused me to die.
In short you might want to think of a way to either load the entirety of the map cleaner, or as the player progresses, have a check to make sure that the map is loaded correctly.
Other than that good game.
Really good game, the graphic are not bad, the physics of the game is weird but it's fun.
not so good ,not so bad