I liked the concept of a tower defense that relies on chance, specially the tower variety. The tutorial text was hard to understand, I had to restart to read it again and it still took me some time to figure out what I needed to do. I think the game has a lot of potential, I see myself playing something like this as a finished version.
It would need some explanation as to what towers do, and either the hability to reposition towers, or a modal when you placed them because i missplaced some towers by mistake.
The game also stopped after the third wave, don't know why, aaaand I enjoyed making the world go crazy by pressing space bar repeatedly. Nice game concept!