As part of its ongoing efforts to promote every single Pokémon out there, The Pokémon Company has shared special content dedicated to Wigglytuff:
Did you know? Thanks to its bouncy body and fine fur, this Pokémon is sought after. Holding one in your arms while you sleep feels great. When it gets angry, it inhales with all its might, and its body gradually inflates. Sometimes they can grow 20 times larger!
Source: @Pokemon
Pokémon Blog 
One thought on “Pokémon pics: A tragic love story in four parts, starring Wigglytuff and Psyduck”