Skimo

Episode 25 "Cambio de personalidades"
"Mucho Mucho" performs his hypnosis show in Skimo, and hypnotizes Fito and Tavo to act as animals, but the twins interfere with hypnosis and before leaving the trance they make Fito and Tavo change their personalities. At the end of the chapter, the twins are accidentally hypnotized and change personalities and because they are equal, they do not know which twin is which.