Ask HN: Mouse exercise tool for a new input device?

There are some aim trainer games like Kovaak's or Aimlabs, but those are specifically for shooters. I imagine they would be difficult on a trackball.

For general point and click, maybe one of the idle clicker games, like Cookie Clicker? Or just browsing the web, or playing a RTS like the other poster suggested.

How about solitaire?

Do you like any RTS games? Disable your keyboard shortcuts and you'll lose some ELO, but you'll drill accuracy and speed like no other

Or FPS games, I would think. Anything to gamify "move the mouse quickly but accurately and click".