You don't get money for completing a level, so early on, you are punished for your accuracy by getting only 20 gold in the wave. The entire game I just clicked, no real strategy to it at all, just shoot and hope the power is where you want it when you let go of the mouse. You loose, start all over, no save, nothing. Nothing about this game is entertaining, and the only reason for a 1/10 is because of the upgrades; they are not great, but the upgrades work.... to an extend. It has no purpose, and above all, it's not enjoyable.