Oops, just noticed the instructions :P Still 4 stars, though - you could certainly have paid attention to details like, stop drawing while I'm selecting the numbers in the textboxes...
You are Dark Sniper, Bringer of the Superrobot, destined to subdue all his sister. Could use better syntax ("all his sister"? Either make the last word plural or remove "all").
@miso4eba: Sure. Other racist terms include black holes, the black plague, the band White Stripes, white noise (in signal theory), white lies and BlackBerry. Sheesh people, you're being paranoid.
The physics isn't so good, especially with the bear's spinning (it makes level 9 particularly problematic). For this reason, I give it a 4 instead of a 5. It's an otherwise excellent puzzle.
Betting in the stadium is unfair to the player. There are 4 racers, but the winnings are only 200%. I only bet to get the achievements, otherwise I wouldn't bet at all.