The gameplay is largely the same as the Midway's NBA Jam games, with some additions. One of the most prominent additions is the "Create Player" feature, which allows players to create a custom basketball player, specifying height, weight, power, shooting, and defensive skills using a limited number of attribute points. Created players can be made more powerful as players earn additional attribute points by winning games.[2]
The game retains many of the same rules of NBA Jam: Tournament Edition, including the two-on-two match ups, statistics tracking, legal pushing and "on fire" mode. Additions to the gameplay include spin moves, alley oops and double slam dunks - a slam dunk performed after one team member in the middle of a dunk passes to the other member. Alley-oops and double dunks can trigger the new "team fire" mode in which both team members are on fire.
Each team now has five members of the roster to choose from. The original arcade version features team rosters from the 1995–96 NBA season, while the home console versions feature team rosters that were accurate to the 1996–97 NBA season. The player can select from any of the 29 NBA teams and match them in four quarters of NBA basketball (three minutes each), with three-minute overtimes if necessary. Just as in the NBA Jam games, the game can keep track of the teams a player has beaten using a player's created ID and PIN. Optionally, the player can load their created player. Players using their ID face off against a series of NBA teams, starting with the Vancouver Grizzlies and ending with the Chicago Bulls (who were on their way to being NBA champions at the time of the game's release). After beating all 29 teams, the player faces off against a number of secret characters.
New to the game is a three-digit "combination lock" feature. Similar to the "Kombat Kodes" in Mortal Kombat 3, the feature allows players to enter codes on the Match Up screen that alter the game's appearance and/or gameplay.
The initial arcade version and the home versions included an NBA trivia quiz at the end of each game played. Answering enough trivia questions correctly in the arcade game originally qualified players for a prize drawing, while on home versions it gives players more attribute points for their created players.