Super Monkey Ball 2[a] is a platform video game developed by Amusement Vision and published by Sega for the GameCube.

[5] Another addition is switches scattered throughout that fast-forward, rewind, play and stop platforms while rolled over onto them, making the sequel more focused on strategy and puzzle-solving.

[5][6] Unlike the first entry, Super Monkey Ball 2 has a single-player Story Mode grouping levels by ten.

[5][6] Dr. Bad-Boon is an evil scientist who steals all of the bananas from Monkey Island, putting four protagonists, AiAi, MeeMee, GonGon and Baby into action to chase him through booby-trapped stages he has set up.

[5] Monkey Boat involves the racers kayaking down a river, with player's only control being the shoulder buttons to steer.

[19] IGN's Matt Casamassina praised the game for its core gameplay concepts, stating that it was "just as simple as the original, and also just as addictive...

[5] However, he also wrote they were addictive, where even skilled players who already defeated the harder stages would come back to figure out shortcuts and tricks to beat them in a shorter amount of time.

[5] Mike Orlando of Nintendo World Report favorably discussed the levels' increased interactivity and strategy as a result of the introduction of switches, as well as the complexity of models built with otherwise simple polygons.

[6] The plot and cutscenes in the Story Mode were described as suitable to the exuberant nature of the overall experience, if "simple and at times ridiculous, weird and borderline disturbing".

[5][6] Critics praised the use of animated assets in the backgrounds, such as volcanos, lava flows, clock gears and space stations, solving the first game's issues of drab, empty environments.

[4][6] They also appreciated the use of particle and lighting effects, such as sparks when a ball hits the ground and Volcanic Magma's flying embers.

[6] By July 2006, Super Monkey Ball 2 had sold 760,000 copies and earned $22 million in the United States.

Next Generation ranked it as the 80th highest-selling game launched for the PlayStation 2, Xbox or GameCube between January 2000 and July 2006 in that country.

[21] A 2002 study recognized Super Monkey Ball 2 as one of several video games associated with improved performance in laparoscopic surgery.

In response to these findings, Dr. James Rosser created a gaming area in the physician's lounge at Florida Hospital Celebration Health,[23] saying "I want all the surgeons to warm-up and make sure they give Super Monkey Ball a chance.