pretty sweet game, very cool concept. I like that you always have access to a nuke weapon, and the overall quality of the game is very high.
Of course, there are bits here and there that I didn't care for. The levels were too long, I think, and certain upgrades were a touch lacking in features. For example, the machine gun could have upgraded in speed as well as damage...which might have been a better focus but perhaps just not possible. I wish the balance of cash earned and level length was a little more quickly paced.
out of 10...
gfx - 8 (pretty good, sorta confusing at times)
sfx - N/A (I have no soundcard)
design - 7.5 (good balance between upgrades and style)
gameplay - 8 (lvl length makes game slightly dull)