For four player games a dungeon about 50% larger than normal is suggested. As soon as the first ball has been found, reset all 6 chests with a second ball. In a multiple player game play does not end when a TD is scored, but a turnover occurs. The ball should be put into play if the second ball has already been revealed.
Standard victory conditions apply, but time limits should be doubled for 4 player games on larger dungeons.
Four player games are recommended for the final round in a preseason, season or tournament.