Red / Blue: Puts enemies to sleep then eats their dreams. Occasionally gets sick from eating bad dreams.
Yellow: If you sleep by it all the time, it will sometimes show you dreams it has eaten in the past.
Gold: If you think that you had a good dream, but you can't remember it, a DROWZEE has probably eaten it.
Silver: It remembers every dream it eats. It rarely eats the dreams of adults because children's are much tastier.
Crystal: When it twitches its nose, it can tell where someone is sleeping and what that person is dreaming about.
Ruby / Sapphire: If your nose becomes itchy while you are sleeping, it’s a sure sign that one of these POKéMON is standing above your pillow and trying to eat your dream through your nostrils.
Emerald: If your nose becomes itchy while you are sleeping, it’s a sure sign that a DROWZEE is standing above your pillow and trying to eat your dream through your nostrils.
FireRed: A descendent of the legendary animal baku, which is said to eat dreams. It is skilled at hypnotism.
LeafGreen / X: Puts enemies to sleep, then eats their dreams. Occasionally gets sick from eating only bad dreams.
Diamond +6: It can tell what people are dreaming by sniffing with its big nose. It loves fun dreams.
HeartGold: If you think that you had a good dream but you can’t remember it, a DROWZEE has probably eaten it.
SoulSilver: It remembers every dream it eats. It rarely eats the dreams of adults because children’s are much tastier.
Y: If you think that you had a good dream but you can’t remember it, a Drowzee has probably eaten it.
Omega Ruby / Alpha Sapphire: If your nose becomes itchy while you are sleeping, it’s a sure sign that one of these Pokémon is standing above your pillow and trying to eat your dream through your nostrils.
Sun: A Pokémon that nourishes itself by eating dreams, it is thought to share common ancestry with Munna and Musharna.
Moon: It finds really fun dreams tasty. When it makes friends with people, it may show them the most delicious dreams it’s ever eaten.
Ultra Sun: It can be spotted near recreational facilities, intending to eat the pleasant dreams of children who enjoyed themselves there that day.
Ultra Moon: It puts its prey to sleep and devours their dreams. It seems that bad dreams taste sour, so Drowzee doesn’t particularly like eating them.
Let's Go Pikachu / Let's Go Eevee: If you sleep by it all the time, it will sometimes show you dreams it had eaten in the past.
