IntroductionEditLoco Roco's friends, the MuiMui, are small bluish creatures that are found throughout the game. They are one of the main "items" that can be found and collected during the levels in Loco Roco. They are usually hidden in the levels, off the beaten path and sometimes are difficult to find. In LocoRoco, the MuiMui you find contribute to music in the LocoHouse, wheras in LocoRoco 2, MuiMui have their own house in BungaBongo. MuiMui found immediately go to the MuiMui House. In LocoRoco Midnight Carnival, each MuiMui found adds 100000 to the total score.
All MuiMui have four hairs and have a single king- the MuiMui King.
They are friendly and helpful to their friends.
MuiMui can speak the LocoRoco language, MuiMui language, and English. When singing they sing any word in the language, but when talking all they say is "MuiMui" and "Cocoreccho".
MuiMui have their own them song called 'MuiMui' which can be played in the LocoHouse on LocoRoco. In LocoRoco 2, the song is played during the LocoStamp minigame and in the 'Sky Walk (One Day...) Video'. In Midnight Carnival, the song is played at the BuiBui Shop, but with the BuiBui singing other than the MuiMui. The MuiMui sing in every song in the first two games, aside from 'LocoRoco Song', The identified songs for each LocoRoco, 'BuiBui' and 'Moja Song'.
MuiMui also sing all background songs of LocoRoco 2 stages except for BuiBui Fort. They can be heard singing in a level after LocoRoco gets 10 fruits.