from the introduction:
This FU expansion will guide you in playing stories set in the Lego universe. It contains information about the setting and customisations of the rules to give your play a Lego ‘feel’, as well as tips to convert just about any other roleplaying game into a Lego game. The ideas in this expansion are based on the many Lego short movies available online, Lego video games, and the feature length film "The Adventures of Clutch Powers".
In Lego FU, you play adventurer minifigs (the small, plastic articulated minifigurines in the Lego universe) exploring the Lego world, helping others along the way. Your stories will take you across the many Lego worlds playing a variety of characters from pirates on the high seas to space police protecting colonists on far-flung planets. While you venture forth, your minifig will build the world around you, creating solutions out of Lego technology to make the world a better place.