Same controls as the original: a mostly open area, trying to reach the key without getting laser-ed by the sun. No wall detection. I'll probably keep this project up as a portfolio piece.
I tried to make the game more challenging and less buggy while making the least possible amount of script changes. Also slightly changed the art to improve the visuals (and on one sprite functionality). All of my notable changes are cataloged as comments on the script, so you can use those to figure out what I did. I enjoyed this more than I thought I would.