Use the arrow keys or WASD to move, jump and crouch. Not much else to this game I don't think I'll ever finish this game, but you can remix it to add more levels if you want to.
DISCLAIMER: All levels are totally possible. This game is supposed to be very hard. Credit to https://www.browserling.com/tools/text-repeat for helping to make designing levels easier! Lag can cause you to die multiple times in a row.