Gaining extreme popularity in the early and mid 1990s, NBA Jam was one of the most popular sports games of its time. In a recent interview, the game's designer, Mark Turmell reveals that there was a code in place to make it harder to win for the Chicago Bulls.
They were coming off their first three-peat 1991-1993, and Turmell, a die-hard Pistons fan, wanted to make it harder for someone playing with Chicago to win. Scottie Pippen and Horace Grant were the two main players for the Bulls, and when the faced off against Detroit, Pippen's player rating would dip a bit, and their clutch ratings were lowered as well.
Game designer Mark Turmell revealed that the 1993 game was actually rigged against the Chicago Bulls, then coming off their third straight NBA championship. Turmell, a diehard fan of the Bulls’ rival Detroit Pistons, tells the magazine that the original game included a code that made it more difficult for Scottie Pippen and Horace Grant to hit clutch shots. The game also lowered Pippen’s ratings against a certain team. Guess which one.
“It’s true, but [Pippen's stats dropped] only when the Bulls played the Pistons,” Turmell said. “If there was a close game and anyone on the Bulls took a last-second shot, we wrote special code in the game so that they would average out to be bricks.