Triangle Man is an olive green triangle Marshmallow People He appears riding on a flying surfboard and jumping off of it and claiming that he "just surfed around the world" and then Pink Marshmallow starts to stab him for no explained reason and then White Marshmallow and Pink Marshmallow kidnap Triangle Man and Triangle Lady and Triangle Man starts claiming that he could feel his "Triangular awesomness leaking out of his face" and after that Triangle Lady eats part of Triangle Man.