Press space to ascend upwards. Press O once to make the blue cats to scroll up and down. Let gravity pull you down. Mainly made for info, look inside for script explanation.
By me. Note: This will only go up and down, try remixing this project to see if you can do the same for x position! Check out my work-in-progress scrolling-platformer game! http://scratch.mit.edu/projects/22479558/#player