OMG IF YOU PLAY ON GOOGLE CHROME AND PRESS CTRL SHIFT N AT THE SAME TIME IT GOES INTO INCOGNITO MODE, WHICH MEANS TAHT YOU ENTER WITHOUT USING FLASH DATA, SO YOU CAN PLAY IT AGAIN ON THE SAME SITE!!!
Most of you guys probably don't have Unity. This guy probably just got it, and doesn't really know what to do. He was just messing around with the terrain, like most people do when they first get Unity.