Comfortable with your system’s cursor speed? Give Cursor Invisible a shot. It’s a very simple flash game: shoot any of three targets with your a mouse click. There’s a very simple catch: you aren’t given any indication of your cursor’s position until after you click. If you’re like me and leave your mouse speed settings alone most of the time, it can be pretty easy at first. On my third try I managed to hit 142 in a row.