K.K. Island

"K.K. Island" (, Animal Island) is a song by K.K. Slider, introduced in. When asked to play this song, K.K. will refer to it as a "secret song." The song is a rearranged version of the BGM played on Animal Island in the GameCube games.

Blaire (in ), Kevin, Lyman, Medli, O'Hare, Plucky and Tangy play it in their house if they have a stereo.