I don't know about anybody else, but the second to last corner on level 4 is IMPOSSIBLE. I don't know what's with it, the a.i. just slams itself on the corner EVERY TIME IT GETS THERE. I don't know if you still develop updates for this, but if you read this, please check this issue out, it feels like it might just be that I didn't have the right build, but I got no clue.
Awesome!