Players continue Sackboy's journey after the events of the first game and the portable version are brought to an end. An inter-dimensional vacuum cleaner called the Negativitron appears over the skies of LittleBigPlanet and begins to suck up its inhabitants, including Sackboy. Larry Da Vinci, the leader of a group known as "The Alliance", comes to Sackboy's rescue - saving him from the Negativitron. The organisation is dedicated to battling with the Negativitron and defeating it before it destroys Craftworld entirely.

Players continue Sackboy's journey after the events of the first game and the portable version are brought to an end. An inter-dimensional vacuum cleaner called the Negativitron appears over the skies of LittleBigPlanet and begins to suck up its inhabitants, including Sackboy. Larry Da Vinci, the leader of a group known as "The Alliance", comes to Sackboy's rescue - saving him from the Negativitron. The organisation is dedicated to battling with the Negativitron and defeating it before it destroys Craftworld entirely.