From the Super Mario Wiki
Swanky's Dash is an area found exclusively in the Game Boy Advance version of Donkey Kong Country 3: Dixie Kong's Double Trouble!. One of these areas appears in each world, and they replace Swanky's Sideshow from the original Donkey Kong Country 3.
Entering this area allows the heroes to meet Swanky Kong, who is willing to give them a Banana Bird if they complete his Bonus Game, which costs two Bear Coins to play. During the game, Dixie Kong, who is the only playable Kong old enough to play the game, must run through a pipeline and collect many stars. There are over 100 stars in each stage, and she has to move all around the perimeter of the pipeline to grab them. However, as she runs, she has to watch out for spiky balls, as hitting into them causes her to drop all of the collected stars. At the end of the Bonus Game, Swanky Kong gives out extra Bear Coins and Banana Bunches to the apes, as well as his single Banana Bird.
Swanky's Dash, along with the other minigames in the game, can be replayed from the main menu if the player enters the "EXTRAS" cheat code in the "Options" menu. Upon selecting Swanky's Dash from the minigame menu, the player has the option to replay each world's challenge. The game also saves a high score for each world based on how many stars Dixie accumulates.