click on single-player or two-player to start the game. Player one: up arrow to move forwards and left and right to turn. The space bar is shoot and the down arrow is boost. Player two: W is forwards, A and D are turn, S is boost, and E is shoot. Your engines stall for a little while after boosting so be careful. You also have a limit of 10 shots.
I was bored so this was all done by me. Cheers. You should follow me on Twitch where I play games instead of making them. N1ightmare_games is the name.