I can't seem to figure out the final boulder run on this level. Once one gets to the exit one is blocked by the front entrance. What does one do here? One time it flattened me and busted the front entrance: somehow I survived that, but the game stuck and the camera just stayed on the boulder.
You need to get behind the boulder by hanging on the ledge that breaks away and then follow it out. Unfortunatly even if you are successfull with this, I had the same lock up problem when the boulder is shown going through the exit.