This page explains in detail the interactions between the Donkey Kong series and the Heidi, Girl of the Alps series.
Donkey Konga 2 (Japanese version)
S ドンキーコンガ２ おしえて Full Combo ハード
July 1, 2004
Donkey Kong
Heidi, Girl of the Alps
The Japanese version of the game features "Oshirete", the opening theme from the Heidi, Girl of the Alps anime, as one of the playable tracks. It's listed in the "Anime" section and its difficulty level is 1, making it the easiest song in the game.
See here for other songs featured in the game.
License
The creators of Donkey Konga 2 were licensed to use the song by its owners.
