Use the arrow keys, and click on mobile. Advertising is fine, just be modest. Don't be like "best game ever". Also, if you advertise a rickroll I WILL TAKE IT DOWN!! BE WARNED!!!
The game is literally by @janwarning2 All I did was add scratch cat. Check out their game here: https://scratch.mit.edu/projects/382223503 This is just a test of jump code, it's not really supposed to be a full platformer, even though it is.