LISTEN UP BUD!
There's lots to improve then it will be an GREAT game! None the less, I admit that it was pretty addictive. There's some minor flaws that could be fixed that would make it a lot better. Least importaintly, fix your buttons and put a background in it so more will activate than just the text. I can't stand buttons that are just active when you're over the text. =(
Also, that dissapearing floor needs work. It doesn't stay long enough or its hard to tell when it's dissapearing or not.
The flame graphic makes the game run slow (at least on my crappy computer) when there's too many.
Does level 6 give you enough health to beat it? It's sort of annoying when the UFO approaches you and you can't do anything to have it not take health away from you. Can you do anything?
DONE.
words of C360 in ur skull.