click and drag the shapes, the first one you click is the only one that's gonna work up arrow / w to jump left arrow / a to move left right arrow / d to move right p to disable the +
not really anything interesting if you wanna jump upside down, then face right, jump, and then press left while in mid-air. then you'll jump upside down. don't know how to fix this bug, so i'll just mention it here for now.