In Moshi Monsters, players battle it out with their friends in various online races to become the next king or queen in the magical world of Katsuma. Through exploration and combat, players will amass an up-to-date knowledge of the game's its lands, creatures, and skills. There is no rest for the king or queen, as they stand a chance against the power of the two massive monsters - Moshi Monsters and their all-powerful ability to transform into any other creature - that stand in their way. In Moshi Monsters - Katsuma Unleashed, the industry's first fully online-based Moshi Monster game, players take on the role of a whole group of specially summoned creatures - against a series of 50 practice races, and then against the clock. The game is set up such that players can choose to face Moshi Monsters in singleplayer or in a multiplayer game, or they can choose to race against the clock, with only one race remaining. In this game, the players take the role of variously shaped Moshi Monsters, and their friends - or enemies - as they navigate their way through the magical world of Katsuma. The game is set up such that players can choose to face Moshi Monsters in singleplayer or in a multiplayer game, or they can choose to race against the clock, with only one race remaining.