I am already done with a few changes, its ready to upload once voting is over.
I just fixed the double jump mechanic, it was a quick fix. I could totally invest more time in a tutorial, maybe splitting the game up into a easy beginner level, then medium, only then the final game. But honestly, i think my game was just for the jam, i do not really see a big future for the game idea, this was just a fun concept for this game jam...