WASD or arrow keys, you can also press space to jump.
I used the first two episodes of Griffpatch's 'Code a Platformer Game' series, and modified some parts to include a thumbnail, 'start game' screen, and ending: https://www.youtube.com/watch?v=D16hTnDGweo https://www.youtube.com/watch?v=HdFxavSE9H8&t=12s
