You're the secound person to recommend changing the inputs for double jump so I feel its probably a good idea to make that change in a future update. Luckily I have all the code for that commented out so it will be a quick fix. The charge power up is a bit of a remnant from when I had enemies planned, that was going to be your attack and you could also use it for platforming/sequence breaks. Adding a longer charge time sounds like a good idea, I had it set so that the charge time was the same as the time it takes to double jump, allowing the player to get an extended jump if they charged it while double jumping. I never considered that it may lead to annoyance with it procing unexpectedly, I will try to adjust it to make it more consistent/purposeful, thanks for all the feed back.