Be careful if you find yourself walking through a park on Halloween at midnight! You might run into the fabled Mutant Olsens. Deformed by a freak microwave accident that resulted in the fusing of two sisters as toddlers, (and their subsequent replacement on the show Full House by robots courtesy of Mr. and Mrs. Olsen), the creature roams the earth on Halloween looking for Bob Saget. You may not be Bob Saget, but that doesn't mean you're safe! The Mutant Olsens use their freaky vacant four-eyed stare to psychically paralyze anyone who crosses their path... then the beast feasts with both mouths on their victims' brains! Bwah ha ha ha ha!