Just like it says use wasd.
I did it in 10 minutes. 'Nuff said. Update Log: 1.0.0: Original Release. 1.1.0: Added world record and high score variables. 1.2.0: Added trail, menu, death screen and made the physics slightly less icy. 1.2.1: Now hides trail at game over screen. Sorry that stuff like that still happens when I code. 1.2.2: Fixed bug where when you press R to restart, score does not reset. Whoops. 1.2.3: been a while. added rainbow house option lol. 1.3: MAJOR GAMEPLAY OVERHAULS! 1. Added "late game" after 5 rushes, rushes will send out 2x as many! 2. Press 'e' to play HARD MODE! 2x as many enemies will spawn! 3. press i after e. have fun.