Not bad
Sorry about all those people flaming you for no apparent reason, but the only thing I see that you might want to fix on this is the speed bar. I know that it has been fixed, but it takes so long to move it from one side to the other, mike kicks your butt easily. Maybe fix it to where you can hold down on the + or - button and it will keep moving, rather than constantly clicking.
Overall a pretty good game though. Quite challenging for its simplicity.