Rise of the Teenage Mutant Ninja Turtles Episode 37 - One Man's Junk / Snow Day >The Turtles, April, and Mayhem are spending a snow day together. Meanwhile, Ghostbear has mutated into a mutant polar bear after coming in contact with an Oozesquito that Mikey defrosted. In this form, he uses his intangibility in a plot to ruin April and the Turtles' fun day in the snow by targeting their snowman.