Here is an improved version of your original platformer. All the features that I have added are inside the project, but I will list a few here: - Mute (m) key added. - I made some of the scripts simpler. Other things are inside the project in the form of comments.
Mouseyrousey for the origional project. I made this to make his creation of platformer skills better (creating better platformer games), assuming he views it.