Has crazy potential
This is an excellant game, it just seems to be missing something. The beginning seems incredibly slow, but as things progressed the game got much more interesting.
I enjoyed the powerups, and definatly the special ones. I forgot they were there for the first 20 or 30so levels.
The main problem was at the end. All I got was a congrats. I think there should definatly be a special mode or something, where you get unlimited cash, you can decide the enemies and such, something like that.
Overall, you have a nice game, the ending just needs to be spiced up a tad.