Team A and Team B have a football match. Team A runs from left to right. Team B runs from right to left. In a move one player of the team runs a single step either horizontally or diagonally. Players can not run backwards or sidewards. The first team to bring a player in the opponent's goal has won. A team without moves loses.
 
There is a third party involved, the referee and his identical twin; they are called 'Refeeree' and 'Refeere'. In contrast to normal football referees the sheriffs in BallaBalla act randomly. Either the referee makes a step in his 8-neighbourhood or more seldomly beats any player in his 4-neighbourhood (giving him the red card, so to say).
 
Moving order is a 4-cycle: Team A, referee, Team B, referee.