LittleBigPlanet was a blast on creative/user-made maps. You could have a fairly stupid concept (free-falling sponge, with a shark that follows you while only i

LittleBigPlanet was a blast on creative/user-made maps. You could have a fairly stupid concept (free-falling sponge, with a shark that follows you while only in water), copy the whole level and mod it to whatever new state you wanted.