For Leaders
One person is the cat (they must chase) and one person is a mouse (they are being chased). Everyone else should stand in a grid (lines of 4 x 4 works well). Each row across joins hands to form lines. The cat must chase the mouse through the lines up and down, but not going under arms. When a leader shouts “change” the grid should switch and become lines up and down, the chase then continues until the mouse is caught. The leader can shout change as often as they wish, this makes it more confusing for the cat and the mouse.