Pocket MuuMuu is an action game developed by Sugar & Rockets and published by Sony Computer Entertainment for the PlayStation, and was released exclusively in Japan in 1999. It is a spin-off game in the Jumping Flash! series. The game makes use of the Sony PocketStation peripheral, but is not required to play. PocketStation games could be played in order to make money so you could buy more PocketStation games as well as other little items.