During a PSP holiday lineup showing yesterday the cute and cuddly Fat Princess was shown off in portable form and appeared identical to the PSN exclusive version. Joystiq, keen observers that they are, saw this and asked Sony what the difference was, other than being able to take the game with you. They we told, “It’ll feature 50 percent more content!”

Not content with a general answer to a specific question, they pressed for more info and found out that the PSP version will include an expanded single-player mode, a new map, and several new modes. A couple of the modes they learned about were one in which the class hat generators are busted and must be repaired before being used and another where, instead of rescuing the princess, the goal is to deliver a bomb to the other team’s castle.