Hypno is a bipedal human-like Pokémon that has yellow colored skin. It has two triangular, cat-like ears on the top of its head and two sleepy looking eyes with a giant nose underneath. On its neck, it has a ruff of white fur. Hypno has five fingers on each hand and holds a pendulum in its left. (It is worthy to note that no explanation has been given as to where the pendulum Hypno carries comes from.) Hypno has three toes on its feet, which have a pink colored pad on the undersides.
The fur on a female's mane is longer than a male's mane.
Hypno are able to put people to sleep. They can then sense the dreams they are having, so they know what kind of dream they would be eating. Hypno is also known to inexplicably conjure up Poison Gas.
Hypno is known to reside away from humans and on less traveled roads. If anyone comes by, the Hypno will hypnotize it and presumably eat its dreams. It carries around a pendulum, the item it uses to hypnotize victims, everywhere it goes. Hypno hypnotizes its victims by rocking its pendulum back and forth steadily, with the arcing movement and glitter of the pendulum lulling the victim to sleep, even if they just woke up. Hypno's Hypnosis technique is so effective, it can induce sleep in only three seconds, although the longer it swings its pendulum, the longer the effects of Hypnosis will last. Since eye contact is required for Hypno’s Hypnosis technique to work, the effect is negated if the victim quickly closes its eyes. While it waits for victims, it polishes its pendulum using its mane.
Wild Hypno live in very tall grass, by muddy rivers, in savannahs, and occasonally in ancient temples and tombs.
It feeds on dreams. Its special abilities allow it to put people to sleep and then sense the dreams they are having, so they know what kind of dream they would be eating.
This Pokémon was unavailable prior to Generation I.