Four teams equal in number occupy four corners of a 15 metre square; one of the players act as 'It'. He stands in the centre of the square. On signal, teams cross diagonally to the opposite corners. 'It' tries to tag as many as possible. The tagged players are eliminated from the teams. The team which retains the largest number after a prescribed number of changes is the winner.
None
Multiple teams
Make sure to explain rules clearly before starting. Divide players into equal teams for fair competition.