Loved the concept, although in the beginning it was quite frustrating as, no matter what slug I chose and the points I bet, I always got the slug that had its speed equal to 30% of the others, being completely "decapitated" :D
I also got the same issue as Lizard, where, the first time I got to win, one of the slugs got stuck xD
Additionally. I just missed some kind of music during the race, and would suggest you to add a time limit to the race, to avoid the issue with the slugs getting stuck, as well as when there is a extremely slow slug as my first few :D