With respect to bombs turning into wild barrels, there is another factor involved. Barrel objects released onto the screen are stored into one of ten possible memory locations, 1 - 10. Each of these objects stores the "last girder" information seperately. So, only if that particular memory location is being reused will we have this possibility of a bomb turning into a wild barrel. So, there can only be a bomb if that particular barrel object was already previously a wild barrel, and the bomb can only turn into a wild barrel if that previous wild barrel for this same barrel object went off the screen early, including being smasshed by a hammer. Example, barrel object 1 was a wild barrel that bounced off of the screens after bouncing off the fifth girder. Barrel object 2 was a wild barrel object that bounced all the way down. Later on, barrel object 2 is reused and is a wild barrel. This becomes a bomb but it does not turn into a wild barrel. Only if barrel object 1 happens to be reused as another wild barrel will it end up being a bomb that turns into a wild barrel. Phew! Confused yet!??