Backspace is the puzzle exit key, you're told in 1-2 and can also see it in the readme file. I'm well aware of the color mixups that happen between Pink/Orange, Green/Cyan, and Purple/Blue. As for that jump "eating", that's a bug of sorts with the IWBTG engine I'm using called jump cancelling (Quick enough rejumps where the button is both pressed and released on the same frame, even though the latter happens before the former, will cancel the jump as early as possible), it's not a piece of tech that is relevant in any way to the game so I'll look into removing it. Thanks for enjoying everything so far!