Instruction book & cartridge only
From Wikipedia: Moshi Monsters was a British web browser massively multiplayer online role-playing game (MMORPG) game aimed at children aged 6–12,[1] with over 80 million registered users in 150 territories worldwide.[2] Users could choose from one of six virtual pet monsters (Katsuma, Poppet, Furi, Zommer, Luvli, and Diavlo) they could create, name and nurture. Once their pet had been customized, players could navigate their way around Monstro City, take daily puzzle challenges to earn 'Rox' (a virtual currency), play games, personalize their room and communicate with other users in a safe environment, although this has been disputed.[3]