In Sackboy's first adventure, the villain is the jealous Collector, who takes others creations due to lack of construction skills. With an army of poorly build robots and deadly contraptions, not to mention a giant robot, he is certainly a formidable foe.
LittleBigPlanet PSP does not contain a main antagonist, but there are certainly many fearsome monsters to face, like a fire breathing dragon!
Sackboy returns to LittleBigPlanet to quickly discover a mad vacuum cleaner powered by the negatives in everyone, The Negativitron. This creation-sucking villain has an army of corrupted Sackbots, The Meanies, a massive artillery of sentries and battle robots (And by that we mean giant chickens!). Due to his inability to see the light side of things and poorly planned defensive measures, he was quickly taken down by Sackboy and The Alliance.
In a world that's lost its creative spirit, soulless living puppets called Hollows have built many vicious machines to halt Sackboy in his quest to save Carnivalia. They live in the Spooky Mansion, where their monstrosity of a mech, the Puppeteer Robot, awaits Sackboy's arrival.
In this Little Big Planet spin-off, Sackboy is plunged into the art of karting when The Hoard, a group of Sackthing-like greedy-grabbies that are more dedicated to taking innocents' creations than the Collector ever was! But what happens when their greed gets the best of them? A giant Trash Monster terrorizes their home! Can Sackboy defeat this foe with the power of karting? (And rockets!?)
In Sackboy's latest adventure, three nefarious Titans plague the planet Bunkum, and turn the friendly novice creator Newton evil! Sackboy can only defeat them with help from OddSock, Toggle and Swoop.
In Sackboy's first app adventure, the Negativitron is back to get revenge after an embarrassing defeat. Can Sackboy outrun him?