I cannot back after level 28

I found a fun exploit where if you move the mouse over the finish, use the Tab key to highlight the star then click on the Enter key, then you basically beat that stage in zero seconds. All 28 stages beaten in 0 seconds. How amusing...

Good game Hard ;)

It's a neat concept but the framerate makes it more difficult during the later levels

There's a bug when you double-clik in the screen game :v I cant beat the tunnel :|