Awesome game dude, my biggest issues are the size of the characters, they make the level look small which probably play a part in why the battles after the second round feels unbalanced.
Reviews for "Overhaul"
After the second level it becomes more luck than anything else. Walls become sparse and building a block strong enough that enemies don't break through in seconds is difficult even when upgraded all the way up.
A button to return to the map if losing a level would be a great improvement.
Looks great, gameplay is a bit boring because there isn't much interaction with the enemies. Like playing tetris with a bug buzzing in your ear, but that's about it. In the second level I came up with a pretty decent strategy: place blocks of a certain type only on blocks of the same type, no matter the level. This always resulted in a pretty good result.
Ah gewd gewd gewd, ya just match the shapes and off ya go!
Pretty fun and unique I just wish you could turn off the blocks you don't like, other than that great game.