A weird looking new pokemon that looks like a pikachu except covered in zits or spots and all that stuff (maybe even STD's) resembling a slice of pizza.
A Pikachu that loves pizza
Ash Ketchum: "Oh wow what's this?"
Professor Oak: "It looks like a new pokemon"
Ash Ketchum: "I thought pokemon liked pokeblocks"
Professor Oak: "Apparently this one is different. It likes human food."