Updates!
Physics engine has been drastically improved, and errors are almost nonexistent. Most errors occurring are in the NPCs wall detection themselves, but they're fairly decent now too. Changed Mario's height for debug purposes, and added ducking. Thankfully I had to make nearly zero changes to the script to change his height, which was nice
Also added more enemies, like the Goompa. Green turtle was changed to red turtle(red turtles don't fall off platforms), and I added a green turtle. I do have to fix turtle wall detection though, as they should be able to fall through 1-width pits and they slide over them. Not entirely sure how I will fix that, though... Will hopefully be adding sliding and maybe wall jumping next!