Here's a not-so-simple platforming base. It contains scrolling, slope detection, walljumping, and supports both the arrow keys and WASD. Fullscreen works fine, although it does increase the lag a little bit. Press space to go on ghost mode for a short while, but if you jump off the stage, you will die and not respawn. Original (a little bit less laggy) project without scrolling and walljumping: scratch.mit.edu/projects/44543106/
Everything was done by me. Yes, I drew the stage.
