The Moshipedia is an in-game element in Katsuma Unleashed that shows fact files of the Moshlings you have rescued. Each 'page' includes their biography and number, with a picture of them. Along with biographies, online secret codes are also stored in the Moshipedia. The DS version of Katsuma unleashed allows players to unlock secret codes for the online game. These secret codes can be unlocked by rescuing them in levels, playing minigames and collecting Rox. 3DS players have the added benefit of having an extra five secret codes able to be unlocked by streetpassing with other players.