I don't see any problem with us adding the up arrow as a jump button, as it's not exactly bound to anything else right now. I'll look to see if we can get that added in the next hotfix. (See edit below) Yeah, especially on some of the later levels when the wall is moving too fast I can see how people would like to just hold down right to get going. Not sure if that's an easy fix or not but we'll look into it. I'm sorry if the game was too difficult, given more time we would have tutorialized the abilities a bit better. Hope you enjoyed your time with the game anyways, thanks for the feedback!
Edit: After looking into adding up arrow and W as jump buttons, we realized that makes ramp jumps impossible without putting your hands in a really weird position (middle finger on W and index finger on S.) This is because our movement system has a weird quirk where you have to hold down S in the air to maintain momentum after a ramp jump. It would be annoying to make it through the first half of the game only to learn that you can't use that control scheme on the most challenging jumps. Sorry about that, I hope I was able to explain it properly.