Press W to jump and A, D to move. Also this version is very barebones.
Thanks @griffpatch_tutor for the Tutorial! Changelog: v0.0.1: Added gravity and movement. v0.0.2: Added ceiling collision. v0.0.3: Added wall collisions! v0.0.4: Fixed infinite jumping and slightly tweaked physics. v0.0.5: Changed level layout a bit.