Roundball: 2-On-2 Challenge is a two-on-two basketball video game for the Nintendo Entertainment System that is played on a half court.Games are played in an arena with a scoreboard and crowd.There is also an option to play a one-on-one game. The game modes contain an exhibition game and a tournament mode. Four teams play against each other in a round-robin format in order to determine the winner.Games can be set for either four, eight, twelve or sixteen minutes.