Move with the arrows and watch the red guy follow you! Press space at the door to go to a level where it demonstrates angle detection! Try moving to the left and having the red guy hit his head on the upside down L; you'll find that he'll turn around and try again!
Me for programming, Disasterpeace for music. Maybe the music was too dramatic for this occasion, but I LOVE this piece. How to make a platformer- http://scratch.mit.edu/projects/14829297/