Oswaldobias
It's the body swap episode!! Well, more or less. It's family day, an annual tradition in which Oswaldo's mother takes a day off to spend a lovely day with her son. But she uses that day to do everything on her "to-do list": go to the grocery store, take Oswaldo to the dentist, and even call that third cousin who had a birthday. It doesn't seem like much, but she is incredibly happy to have her son with her that day. But can it really? Because Oswaldo REALLY doesn't want to spend the day with his mother doing boring things, so he disguises Tobias as Oswaldo to try to fool his mother. It's not that hard at all. At first she is disappointed with Oswaldo for not wanting to spend time with her, but little by little she decides: it's time for rematch. So the mother starts treating Tobias as if he really were Oswaldo — what's more, she decides to give up her to-do list and take Tobias to the arcade. Oswaldo goes crazy with it, but by then it's too late.