Press the W key to move P1 forward, and the up Up Arrow to move P2 forward. For turning, it's A and the Left Arrow for left, and D and the Right Arrow for right. The S and Down Arrow Keys are for moving backwards. When one of the players is touching the computer, press C to turn it on, and press O afterwards while your player is in the bottom right corner of the computer screen.
This game is an homage to the Geometry Dash level "Killbot". I made every single sprite myself, and somehow managed to complete this in just a few days. I recommend that you play this with 2 people. Note: Some people may find the messages disturbing.