the control scheme for this game is really unwieldly, you have to have one hand on the mouse, one hand on the spacebar to jump, but then ALSO have it on the arrow keys, meaning you either need to stretch you hand wide and risk getting carpal tunnel or have a THIRD hand, but a suggestion for this issue i do have is maybe have the jump button also mapped to the up arrow, that way you don't need to stretch your hand widly to use it