Funky's Rentals (minigame)
From the Super Mario Wiki
Funky's Rentals is a series of four challenges hosted by Funky Kong at his location of the same name in the Game Boy Advance remake of Donkey Kong Country 3. The player can also replay his challenges from the unlockable "Extras" menu after entering "EXTRAS" from the Cheats sub-menu.
The first challenge is available by default, and the other ones become available when Funky constructs new vehicles.