Roundball: 2-On-2 Challenge is a 2-on-2 basketball game that is played on a half court. There is an option to play a 1-on-1 game also. The game modes contain an exhibition game and a tournament mode. The tournament involves 4 teams playing in a round robin to decide the winner. Players can set the time of the game at either four, eight, twelve or sixteen minutes.
The game offers 24 unique and fictional players to pick from each with their own individual ratings. Players are rated in the following skills: three point shots, field goals, free throws, rebounds, stealing, shot blocking, assists, and personal fouls.