The aim of this game is to dodge the bullets, not touch the edge and survive as long as possible! arrow keys move and stuff so i guess the only other thing i can say is SMACK DAT FLAG! have fun! :P
another useful thing is that you can press space to start the game immediately. at the moment there are 10 levels but going to add more and more enemies! :P Music- MUPPETS! :D by the way after the 10 levels end it is actually endless