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NBA Jam Extreme (NBA JAM エクストリーム) is a 1996 arcade game by Acclaim, an entry in the NBA Jam series, and the last to see release on a Sega platform (though not the last game to carry the NBA license). It was ported to the Sega Saturn by Sculptured Software in 1997, and introduces full real-time 3D to the series.
Unlike its predecessors, NBA Jam Extreme was not developed by Midway Games. Instead, Acclaim Entertainment bought the rights to the name "NBA Jam" and tasked Sculptured Software with producing a 3D basketball game with a similar theme (before going down a more realistic route starting with NBA Jam 99) - many of the staff of NBA Jam: Tournament Edition would instead go on to create (the 2D) NBA Hang Time, released in the same year.