First, divide the people into 2 equal groups. Using papers, give each group 2 less piece of papers according to the group size. For example, if there are 10 people in the group, give only 8 papers. A person in front of the group represents the gate of heaven. Using the papers as steps, the group must manage to reach there the fastest. The trick is that their feet must always touch the paper. They can do whatever they want as long as their feet never touch outside the paper; they can jump, form lines, strategy is limitedless.