The new Loco Roco game is coming to the PS3 as a downloadable title in Japan on September 21st. Even better is the games full name: Oiedeyo LocoRoco!! Boo Boo Cocoreccho!
The game apparently lets the player control a butterfly (or butterflies) that wake up sleeping LocoRoco by saying "boo boo".
IGN: LocoRoco PS3 Dated