Rubber pikachu
This small pikachu is made out of rubber, it's only desire is to make other non-pikachus into rubber pikachu's like it, it usually does this via calling upon it's rubbery pikachu brothers to hold their victim down and sing it a hypnotic pikachu lullaby, upon being infected, a victim will begin to shrink to the size of a pikachu before only being able to make simplistic noises, their body will then morph into a rubber pikachu and then their mind will morph into that of a rubber pikachu