Use the arrow keys to move. There are three settings meant to show the gravity on three planets (The Moon, Mars, and Earth.) Disclaimer: this it not a perfectly accurate representation of gravitational pulls. If you need liable information, go to https://phys.org/news/2016-01-strong-gravity-planets.html .
Thanks to https://scratch.mit.edu/users/Moo-Moo333/ for getting me back into Scratch.