It replaces the Runner's Rhythm's bongo music with music from the Donkey Kong series!
It has three versions:
Jungle Japes from Donkey Kong 64,
Jungle Level from Super Smash Bros. Brawl, and
Temple - DK Island Swing from Donkey Kong Country: Tropical Freeze.
The preview is that of the Jungle Level from Super Smash Bros. Brawl, a wonderful and great game!