Use the key space or the up arrow to jump the cat. The Jump had an little speciality; this is a key pressed jump and the cat jump a little bit if you pressed for a short time in the key and jump very high if you press in the key in a long time. If you blocked the key, if you keep the key pressed, the player process just one jump and jump not forever.
Just a little test. I had this idea since an long time ago!