The game is too random. I'll survive for 5 minutes and only have 10k points because no power-ups show, or I'll be around for 1 minute and have 30k because of an abundance. But then of course a wall shows up and I die. Every single time.
...I seem to be the only one having trouble getting the hard badge.
Good tower defense game. Unfortunately one formula works for all maps, ie build a dual machine gun tower, sheild it, add a couple snipers and you win. Still, a very fun game; very frantic, cannot let your attention slip for one moment. 5/5