Click the green flag then to start with choose 1-3 (difficulty and then (z for single player) (x for multiplayer). Then P1 use W(jump)A(left)D(right) to move and P2 use arrow keys to move. To jump diagonally hold up and left/right(the direction you want to jump) (if you jump at a wall when you jump diagonally and you are not touching the wall when you jump then you do a wall jump). To get to the next level get to the far right. Or to skip a level tap 2, to go to the previous level tap 1 to redo your current level tap 3. Hope you enjoy!