[a] is a basketball video game originally developed and published by Accolade for the Sega Genesis on North America in March 1994 and later in Europe in April 1994.

The game and its sequel have since received newer ports without Barkley's branding under the name of Hoops Shut Up and Jam!.

is a two-on-two street basketball game where players take control of either former NBA MVP Charles Barkley or one of fifteen fictitious basketball players in a progressive series of matches on outdoor courts across different cities of the United States, with the exception of Phoenix, which takes place in an indoor court.

[9] Like NBA Jam, players has access to a turbo function that allows the characters to move faster and steal easier.

[16][17][18][19][20][21] The port was later showcased by Atari in an early playable state at WCES '95, featuring redrawn sprites and digitized graphics, with plans for a Q2 1995 release but was later rescheduled to be published in September 1995.

[27] Other internal documents from Atari still listed the port as in development on December of the same year and was last previewed by GamePro magazine in 1996.

[28][29] The port was ultimately never officially released during the commercial run of the system, which was discontinued by Atari in April 1996 before merging with JT Storage in a reverse takeover during the same month.

[19] On May 14, 1999, Hasbro Interactive released the patents and rights of the Jaguar into public domain and declared the system as an open platform, opening the doors for homebrew development and allowing independent publisher and developers to release unfinished titles from the past life cycle of the system.

They took a stance that the controls were responsive and tight, but were disappointed by the size of the roster, when NBA Jam, the game's foil, had been out already and had more than three times as many characters to choose from.

[66] Due to critical acclaim, coverage by several gaming journalism sites and its novel premise, Shut Up and Jam: Gaiden and its cancelled sequel have dwarfed the official series by Accolade in both popularity and relevance.