Very Nice... not perfect
"KindMuffin" I disagree! I will agree that the game was fun and the concept is quite ingenious, but it wasn't perfect. A casual game is one that can be picked and played immediately taking very little time to ramp up.
Some of the things that could have been improved:
HUD (Heads up Display) - I wasn't sure how much damage i had taken.
Upgrades - It would have been nice if the player could increase certain stats... faster firing rate of the balls and more being shot for a designated period of time.
Slim Tutorial - Cut the wall of text down and try to explain things visually... People automatically get turned off by walls of text because the cost of how much time you have to spend ramping up is too high. and people are naturally lazy.
But i really did enjoy it. Cool concept i would like to see you take it further.
bnns