Witch part of the controls are bad? Is it the jump height while big? Was it throwing the block by holding Z and aiming with the arrow key?
Viewing post in Flux Scale Agent jam comments
Ah. I think that the rare bug some of my friends found after the jam. It depend on the user computer. I made a fix to it here on newground https://www.newgrounds.com/portal/view/944780. Can you check if you still have the problem?