Click to move the green square. Please note that the green square does not move TOWARDS the mouse, but in fact in accordance to where the mouse is on the SCREEN. This means that if you click directly in the middle, the shape will not move, however if you take your mouse to the edge (so that mouse x = 240 or a similarly high amount) it will rocket towards the right. If I'm STILL not getting through to you, just try this. You'll get the idea eventually.