I was busy playing a game called Hoshi Saga, a game in which you have to find a hidden star in every level, and they had this one level, recreated here, in which you click and hold until the stars fully form. You have to hold for about 20 seconds. I really wanted to see if this was a trick, and lo and behold, it is not! Releasing the mouse causes the stars to spin slower. Just a little test, this is not a trick. If you don't believe me, download and see! It really is just a spinning sprite. Love it if you do! Works best offline in presentation mode, because it lags a bit online.