Use the arrow keys to aim and SPACE to shoot. From then on, use the arrow keys to change your direction. Kill as many enemies as you can, and once they get to the guy who shot you, GAME OVER. You get money for every 3 seconds you spend in the air and for every enemy you kill.
This is one of my favorite games that I made. * * * * * NOTE THAT THIS GAME IS NOT PLAYABLE YET * * * * * I still need to add an upgrade, I need to add more enemies, and I need to make it so you lose when enemies touch you. There are a few glitches still.