Extra Song Pack feat. Rish! Grants access to 12 songs, including "Bamboo" and more.
This is additional downloadable content that adds the following playable tracks:
Bamboo
Punai Punai Taiso
Punai Punai Fantasy
Punai Punai War
Tanaka
Waaa
Kakikuke Caution
Nitrogen
As the angel says
Pa Pi Pu Pi Pu Pi Pa
B.B.K.K.B.K.K（Rish&Choko Remix）
MaiMai Memomo Memomo MaiMai