Just move your mouse! The disc should move and spin faster as its distance from the cursor increases, slowing down as it approaches.
Just a fun idea I came up with while brainstorming concepts for new games. I was thinking I could make this some kind of weapon, and use the purple tracking points to detect when an enemy was hit by one of the sides. Because the disc spins faster when moving faster, a quick mouse would mean more rapid damage! Unfortunately, they seem to lag behind quite a bit, which could prove to be an issue if this was to be implemented. Additionally, these tracking points collide with the edge of the screen and slide along it rather than pass through.
