Woooaaa. Duuude, I couldn't see what was going on. I tried so hard, but when the red windows appears it's impossible to keep up with the rate of closing windows if you miss even one.
I really liked your idea, but the execution could be better. It's really fun to close those windows, but as a player I felt frustrated for not seeing the power-ups or not being able to cool down even 1º of heat, because I suck.
Great job with the game, man!