I did try to curtail mashing keys, though I imagine the system in place isn't robust enough i'll have to look into that for an update :) Will definitely add those keys onto the pipes, as I completely agree the game doesn't do a good enough job of explaining anything to the player. Sound is definitely something I want to add, I didn't really have time. But I know it would make it feel more complete with it, i'll get round to it soon! Thank you for the feedback and playing my game!