Nice...
It was a good game, but since the powerups stack (btw i loved that they did) the game had no real end. I still liked it, but some form of a end or a quick difficulty ramp might be nice. After 1.5k lvls the game really should not be still going on.
All and all it was well done, i was happy about the stacking powerup and the fact that my whole screen was filled and it did not lag up. It would be intresting to see how you put strategy into that, but who knows it might be groundbraking!
Hope to see more from you.