This game is amazing. Just loved it!
Really addictive, really good progression system, nice visuals and nice music and sfx, what can I say? Just the right amount of juice, without being overwhelming, really great!
The only thing I'm sad about is that I was going to high score this game (116830, wave 14), and it crashed :'( (webgl version). I think I would have stayed too much time on this game if it didn't crash haha.
Edit: the game crashed again :'(. Do you think you could upload a native (windows? linux?) version? I'd happily play it!