Pretty Decent Game.
I do have a few negative comments though. You don't really need to go through the checkpoints, you simply need to go close to them, and that can get annoying when in a close race. Regaining control after a bad turn is very hard....But its pretty easy to get in the habit to drifting around turns. I find it easiest to let off the gas momentarily to get the best turns.
Nice! No walkthrough needed for me ;) And you can simply select the last level and are able to get the other ending without restarting the entire game.
Still can't beat a size 4 at all.... but here is a super hard one i made. cqbiCqhmfCwdqbtCqdprAwbpgAqdqbcXbwsbuXmpbXhesXbmqoCdeiXdefCdbwtXdhqrXdhTXdhMXdhkXdbpXdhwXdh
This is a good game, but I do have something against it.
I beat most of the levels. I think I would have gotten the badge that said "Kill 50 enemies, then complete your current level". I'm not making a big deal out of 5 points, but I have fired 4000 or so rounds, and I think that I would have killed some people with all those bullets. However, my stats say that I haven't killed anyone with a gun; yet I have 173 melee kills. (And I did get that badge)