I found this to be a refreshing and unique puzzle game. It lost its charm after about six games, but I give it a 5/5 for uniqueness alone. Not many puzzle games are very unique.
Awesome game, should have been longer though. Maybe some kind of challenge unlimited more. "Infinite City", where units spawn as you play to make it impossible to win, just to see how far you can get.
Pretty good, but too easy. Won it on my first try. :\
Sniper and fire towers are far too powerful, and everything else is so weak that it is pointless to use them.
Also, an unlimited mode would be cool.