Use the arrow keys to move the player and press the space key to jump. There are different techniques to last a long time, and my favourite one is the 45 degree square loop; it's where you go around in loops like a square but tilted 45 degrees.
This is a scary version of the original and the costumes have changed but not code (too much homework to do) and btw I have typed this message with a fully broken backspace :|