Aww. Thank you very much Semicolonkid. Yeah, I agree with what people have been saying and I 100% agree about not communicating double jump. That specific feature I just didn't think of needing since the last time I had a platformer, people were fuming that it didn't have a double jump "even though all platforms need it". Which I don't agree with. But it was an experiment for sure.
So I'll make sure to address it with tutorials/communication in the full commercial game version I'm currently working on. I really appreciate the kind words and feedback :D.