use the up arrow to jump. I don't know how to make a scrolling platformer, so this was my best attempt. If you know how to make a scrolling platformer, please give me a link in the comments. There is a hack in this game. See if you can find it. (it's pretty easy to find.) Also, please love, favorite, and follow. :)
All coding done by me. Thanks to @ItsBrambleclaw for support