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Red +2: While lulling its enemies with its vacant look, this wily POKéMON will use psychokinetic powers.

Yellow: Always tormented by headaches. It uses psychic powers, but it is not known if it intends to do so.

Gold: It has mystical powers but doesn't recall that it has used them. That is why it always looks puzzled.

Silver / SoulSilver: If its chronic headache peaks, it may exhibit odd powers. It seems unable to recall such an episode.

Crystal: The only time it can use its psy­ chic power is when its sleeping brain cells happen to wake.

Ruby: PSYDUCK uses a mysterious power. When it does so, this POKéMON generates brain waves that are supposedly only seen in sleepers. This discovery spurred controversy among scholars.

Sapphire: If it uses its mysterious power, PSYDUCK can’t remember having done so. It apparently can’t form a memory of such an event because it goes into an altered state that is much like deep sleep.

Emerald: When its headache intensifies, it starts using strange powers. However, it has no recollection of its powers, so it always looks befuddled and bewildered.

FireRed / X: It is constantly wracked by a headache. When the headache turns intense, it begins using mysterious powers.

Diamond: If its usual headache worsens, it starts exhibiting odd powers. It can’t remember doing so, however.

Pearl: It never remembers using its odd powers, so it always tilts its head in puzzlement.

Platinum +2: Overwhelmed by enigmatic abilities, it suffers a constant headache. It sometimes uses mysterious powers.

HeartGold / Y: It has mystical powers but doesn’t recall that it has used them. That is why it always looks puzzled.

Black 2 / White 2: When headaches stimulate its brain cells, which are usually inactive, it can use a mysterious power.

Omega Ruby: Psyduck uses a mysterious power. When it does so, this Pokémon generates brain waves that are supposedly only seen in sleepers. This discovery spurred controversy among scholars.

Alpha Sapphire: If it uses its mysterious power, Psyduck can’t remember having done so. It apparently can’t form a memory of such an event because it goes into an altered state that is much like deep sleep.

Sun: As a result of headaches so fierce they cause it to cry, it sometimes uses psychokinesis without meaning to.

Moon: This Pokémon is troubled by constant headaches. The more pain it’s in, the more powerful its psychokinesis becomes.

Ultra Sun: Using psychokinesis gives it a headache, so it normally passes the time spacing out and doing as little as possible.

Ultra Moon: It has been found that its brain cells are 10 times more active when Psyduck is experiencing a headache.

Let's Go Pikachu / Let's Go Eevee: Always tormented by headaches. It uses psychic powers, but whether it intends to do so is not known.

Sword: Psyduck is constantly beset by headaches. If the Pokémon lets its strange power erupt, apparently the pain subsides for a while.

Shield: As Psyduck gets stressed out, its headache gets progressively worse. It uses intense psychic energy to overwhelm those around it.

Legends: Arceus: Suffers perpetual headaches. If the agony grows too great, Psyduck's latent power erupts, contrary to Psyduck's intent. Ergo, I am exploring ways to ease the pain.