Doom Church Mark Bristow, St Peter Port, Guernsey. You play the part of Charlie, the church carpenter. The idea is to build the church tower before the "thing" on the roof moves across to the end, and also without being hit by the demolition ball. To do this you must collect a ladder from the right and take it to the scaffolding on the left. When you have built all four ladders up, you must go to the top and release the tower. Once this is done the "thing" on the roof stops moving. But you still have to place the clock in the right place on top of the church. This is simply done by pressing 0 when you think it is over the right place on the church.