I have added some minor changes to make this game more physically accurate: [1] I made the force of magnetism vary by 1/r² (like gravity; see "repel magnet" sprite) [2] I added a collision script (see "control magnet" sprite) [3] Because opposite charges attract, I made both of the "repel" and "attract" the same charge, viz., positive. However, so you can tell which one you control, I made the outlines different.