Stream anime episodes online for free, Watch 12 oz. Mouse Episode 21 – Enter the Sandmouse English version online and free episodes. Anime Episode guide, Chapter 12 oz. Mouse Episode 21 – Enter the Sandmouse Enter the Sandmouse Mouse, Skillet, Golden Joe and Peanut Cop trek through the desert after leaving the city behind. However, Golden Joe is carried away by a bird and Peanut Cop later vanishes in a flash of light. Now alone in the desert, Fitz and Skillet live in a house made of sand and their own spit. They get into a gunfight with a strange, gun-toting woman named Lee.