The bright idea here is to use the same level eight times, and just throw more nonsense at you each time. Makes for real compelling gameplay... You see everything you need after level 1. Move along, this isn't the defense game you're looking for.
I've run into bugs like Branoff (whose comment has been marked down for some reason). Occasionally the game won't take keyboard input until I reload, and in one match I was randomly unable to jump. Otherwise a solid action title, and a decent badge-grabber.
Decent start, but it needs work. If there is no reason to continue past the third checkpoint, the level should probably end. Why list "Speed" if there is no way to adjust it? What the hell are the blue gears for? Concept is interesting, needs polish.
We pushed a bug fix to fix this, v0.6.0.1! Thanks for the report!