The tiny planet Flossy floats in a colourful universe populated by alien children of all kinds. Flossy hosts a very special place: the Game Catchers Headquarters! To help the Game Catchers in their mission there's Mr. Moustache, a nice alien, who has dedicated his whole life to studying games to teach them to new generations.

Every day, they go on a mission to explore each planet in the universe, make friends with its inhabitants and discover their favourite games. Each game is different depending on the planet and the Game Catchers want to discover them all!