Some Pokemon get to become UFOs or even sexier bunnies with their Mega Evolutions. Not Slowbro. Mega Slowbro (Water/Psychic) just retreats further into its shell, having an identity crisis, thinking it is a turtle. Maybe it saw that new Teenage Mutant Ninja Turtles movie and really identified with it.
I don't even know what an Audino is, but I can tell you it is Normal/Fairy.