Now it's running in the web version - wheeeeeeeee! :D
Fun game, need to try the two players mode...
Only one thing that I would improve: if you are close to a right wall, the player disappears behind it. I understand the perspectives of that, but it looks still a bit odd. Maybe change that?
Regarding the AI, here's a suggestion: make it slower when it's leading and faster when it's catching up! This way the game will keep challenging.