Spider Monkey is one of the aliens made by Ben 10's Omnitrix in Alien Force. The Boys Ben 10 Spider Monkey Costume features a blue jumpsuit with a pair of attached fake arms that move with your own and a long monkey tail. The chest has muscle padding and an Omnitrix decal. The Spider Monkey mask with 4 eyes is included with the costume. Spider Monkey has 4 arms, two legs, 4 eyes and spins webs that are as strong as steel. Spider Monkey has superior hearing and agility. He can also adhere himself to vertical and upside down surfaces. Having 6 appendages also makes Spider Monkey good at hand-to-hand combat. He gets his name because he has the limbs of a spider and the tail of a monkey.