This Hypno is a psychic-type Pokémon belonging to the Pokémon Lovers Club.
Hypno was a Pokémon that evolved from a Drowzee. This caused the members of the Pokémon Lovers Club not to use medicine for sleep, but also caused the children to act as Pokémon. Misty went to see if it is true, causing her to act as a Seel in the process. Team Rocket went to steal it, but failed.