I'm going to be a rebel and put the instructions in the "Notes and Credits" section. Mwahahaha! >:D
You're the green circle thingy. You can click to teleport to the edge of your bubble. While clicking, time freezes, but your bubble shrinks. The triangles are bad. Don't touch them. If they hit the walls, they will be damaged (the harder they hit the walls, the more damaged they get). Your score is based on how many triangles you get.