BMX backflips...

[reefsurfer]

http://www.mousebreaker.net/games/bmxbackflips/play.php

Probably old.. but its still fun.
59524 on the first run.

[Guest]

143974

Made it to level 5 or 6 not sure which.

[Guest]

You should try this one

http://www.gamesloth.com/games/bmxghost.html

And the BMX Star game. I got pretty fast times in the bmx ghost one.