User:TehPerson/Form differences in Pokémon GO

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In Pokémon GO, all forms are determined at the time of capture and cannot be changed, regardless of the mechanics in the core series. Although every species has one Pokédex entry each, alternate forms of the same species are registered as different. This means that even if a player has one form of the species registered in the Pokédex, an alternate form, if not yet obtained, will still appear as a silhouette in the "Nearby" view, and receiving one in a trade requires a Special Trade.

Alternate forms

The following lists the alternate forms that do get registered in the Pokédex.

Regional forms

Regional forms were first introduced to Pokémon GO around the time Pokémon Ultra Sun and Ultra Moon was officially announced. Some species appear in the wild, while others are exclusive to 7 km Eggs, raids, and later, Field Research (with the exception of limited-time events). Galarian Weezing was introduced on November 16, 2019, in raids to celebrate the release of Pokémon Sword and Shield.

Obtainability	Pokémon
Wild encounters
Non-wild encounters

Unown

This section is incomplete. Please feel free to edit this section to add missing information and complete it.

Certain forms of Unown have been made available in increased spawns during certain local events. The forms available typically correspond to the characters of a word related to the event.

Event	Word	Unown forms
Pokémon GO Fest 2017 (July 22, 2017)	CHICAGO
Pokémon GO Park (August 9 - 15, 2017)	YOKOHAMA
Pokémon World Championships (August 18 - 20, 2017)	WORLDS
Pokémon GO Safari Zone in Europe (September 16 - October 14, 2017)	SAFARI
TwitchCon (October 20 - 22, 2017)	TWITCH
Pokémon GO Week in Korea (November 10 - 12, 2017)	SEOUL
Pokémon GO Safari in Tottori (November 24 - 26, 2017)	SAFARI
RTX Convention, Sydney (February 3, 2018)	RTX
Pokémon GO Safari in Chiayi (November 24 - 26, 2017)	CHIAYI
SXSW, Austin (November 24 - 26, 2017)	SXSW
Game Developer Conference, San Francisco (March 21 - April 1, 2018)	GDC
Armageddon Expo, Wellington (March 30 - April 1, 2018)	ARMAGEDDON
Comic Con, Utrecht (March 31 - April 2, 2018)	COMIC CON
PAX East, Boston (April 6 - 8, 2018)	PAX
Ultra Bonus Week #1 September 2 - 9, 2019	ULTRA

Spinda

Unlike in the core series, each of Spinda's patterns is treated as one of nine alternate forms, each registered separately in the Pokédex. Spinda can only be caught as a reward for completing specific Field Research. Only one pattern is available worldwide at any time, and the pattern rotates periodically. Pattern 9 specifically was made available exclusively for the 2019 Valentine's Day Event. Since July 2019, Spinda has a possibility of being Shiny, with the Shiny forms' spot patterns being slightly different from their normal counterparts'.

Form	Availability
Pattern 1	October 2018 — Make 2 Nice Curveball Throws
Pattern 2	March - April 2019 — Make 5 Great Curveball Throws in a row
Pattern 3	September 2018 — Make a Great Curveball Throw
Pattern 4	May - June 2019 — Make 5 Great Curveball Throws in a row
Pattern 5	January - February 2019 — Make 5 Great Curveball Throws in a row
Pattern 6	December 2018 — Make a Great Curveball Throw
Pattern 7	November 2018 — Make 3 Nice Curveball Throws
Pattern 8	August 2018 — Make 3 Curveball Throws in a row July 2019 — Make 5 Curveball Throws in a row
Pattern 9	Valentine's Day: February 13 - 21, 2019 — Make 5 Great Curveball Throws in a row

Castform

Castform's form in the wild depends on the current weather in the game. Unlike in the core series, Castform is locked to one form once caught. Additionally, even a change in weather will not affect already-spawned Castform's form.

Form	Fast Attacks	Charged Attacks	Weather
Normal	Tackle Hex	Hurricane Energy Ball Weather Ball
Sunny Form	Ember Tackle	Fire Blast Solar Beam Weather Ball
Rainy Form	Water Gun Tackle	Hydro Pump Thunder Weather Ball
Snowy Form	Powder Snow Tackle	Blizzard Ice Beam Weather Ball

Deoxys

Deoxys was exclusively available in EX Raids from October 2018 to September 2019, with its forms rotating every several months.

Form	Stats			Moves		Availability
	HP	Atk	Def	Fast Attacks	Charged Attacks
Normal Forme	137	345	115	Zen Headbutt Charge Beam	Psycho Boost Zap Cannon Hyper Beam	Oct 1 - Dec 28, 2018
Attack Forme	137	414	46	Zen Headbutt Charge Beam	Psycho Boost Zap Cannon Dark Pulse	Dec 28, 2018 - Mar 25, 2019
Defense Forme	137	144	330	Zen Headbutt Counter	Psycho Boost Thunderbolt Rock Slide	Mar 25 - Jun 24, 2019
Speed Forme	137	230	218	Zen Headbutt Charge Beam	Psycho Boost Thunderbolt Swift	July 1 - Sep 28, 2019

Cherrim

Cherrim's form in the wild depends on the current weather in the game, using the same mechanic that determine's Castform's form. It will appear in its Sunshine Form in sunny/clear weather and Overcast Form otherwise. If evolved from Cherubi, Cherrim's form is determined purely at random, without regard to the current weather.

Form	Fast Attacks	Charged Attacks	Weather
Sunshine Form	Razor Leaf Bullet Seed	Dazzling Gleam Hyper Beam Solar Beam Weather Ball
Overcast Form	Razor Leaf Bullet Seed	Dazzling Gleam Hyper Beam Solar Beam	All other weather

Giratina

Giratina was exclusively available in level 5 Raid Battles. Its forms were available at different times.

Form	Stats			Moves		Availability
	HP	Atk	Def	Fast Attacks	Charged Attacks
Altered Forme	284	187	225	Dragon Breath Shadow Claw	Dragon Claw Ancient Power Shadow Sneak	October 23 - November 20, 2018 March 28 - April 2, 2019
Origin Forme	284	225	187	Dragon Tail Shadow Claw	Dragon Pulse Ominous Wind Shadow Ball	April 2 - April 29, 2019

Event Pokémon

Event Pokémon, also known as Costume Pokémon, are special forms that have appeared during various events for a limited time. These forms feature an otherwise-normal Pokémon with an event-relevant costume. Some Event Pokémon can potentially be Shiny as well or know event-exclusive moves. Some event forms can evolve, and if they do, retain the costume after doing so. Event forms do not appear in the Pokédex of Pokémon GO, but are still treated differently in terms of Pokédex registration. Since event Pokémon are unique to Pokémon GO, they cannot be transferred to Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!.

Bulbasaur family

Form	Availability
Shedinja costume	Halloween 2019: Oct 17 - Nov 1, 2019
Party Hat	Pokémon Day 2020: Feb 25 - Mar 2
Clone	Pokémon Day 2020: Feb 25 - Mar 2 Knows Frenzy Plant

Charmander family

Form	Availability
Cubone costume	Halloween 2019: October 17 - November 1, 2019
Party Hat	Pokémon Day 2020: Feb 25 - Mar 2
Clone	Pokémon Day 2020: Feb 25 - Mar 2 Knows Blast Burn

Squirtle family

Squirtle wearing sunglasses was made available during the Squirtle Community Day as a reward for completing event-exclusive Field Research tasks.

Form	Availability
Squirtle Squad sunglasses	Squirtle Community Day: July 8, 2018 — Field Research
Yamask costume	Halloween 2019: October 17 - November 1, 2019
Party Hat	Pokémon Day 2020: Feb 25 - Mar 2
Clone	Pokémon Day 2020: Feb 25 - Mar 2 Knows Hydro Cannon

Raticate

Form	Availability
Party hat	Adventure Sync Hatchathon: January 2 - 16, 2020 Minccino Limited Research Day: February 2, 2020

Pikachu family

For certain global events, Pikachu wearing corresponding costumes became available in the wild at increased spawn rates, and Pichu wearing the same costumes could be hatched from Eggs received during the same period.

Form	Availability
Festive hat	Holiday: December 12, 2016 - January 3, 2017 Holiday: December 21, 2017 - January 4, 2018 Knows Present Holiday: December 18, 2018 - January 2, 2019 Pokémon GO Fest 2019 - Yokohama: August 6, 2019
Party hat	Pokémon Day: February 26 - March 6, 2017 Pokémon Day: February 26 - February 28, 2018 Knows Present; Shiny possible Pokémon GO Fest 2019 - Yokohama: August 7, 2019 Adventure Sync Hatchathon: January 2 - 16, 2020
Ash hat	1st Anniversary: July 6 - July 27, 2017 April Fool's Day: April 1 - 2, 2019 — 5 per day via GO Snapshot Pokémon GO Fest 2019 - Yokohama: August 8, 2019
Witch hat	Halloween: October 20 - November 2, 2017 Halloween: October 23 - November 1, 2018 Pokémon GO Fest 2019 - Yokohama: August 9, 2019
Summer-style	2nd Anniversary: July 5 - July 31, 2018 Pokémon GO Fest 2019 - Yokohama: August 10, 2019
H.F. Custom Cap	October 6 - 7, 2018
Flower crown	Pokémon Day: February 26 - 28, 2019 Pokémon GO Fest 2019 - Yokohama: August 11, 2019
Detective Pikachu	Detective Pikachu: May 7 - 17, 2019 — 1 per day via GO Snapshot Male only; Shiny not possible* Pokémon GO Fest 2019 - Yokohama: August 12, 2019 Male only
Straw hat	Kumamoto Revival Project: July 22 - July 29, 2019
Mimikyu costume	Halloween 2019: October 17 - November 1, 2019 Male only
File:GO172W.png Beanie hat	Holiday 2019: December 24, 2019 - January 1, 2020
Party Hat	Pokémon Day 2020: Feb 25 - Mar 2
Clone	Pokémon Day 2020: Feb 25 - Mar 2
Safari hat
Flower hat	Spring event 2020: April 9 - April 16, 2020
Charizard hat	Throwback Challenge 2020: Kanto
Umbreon hat	Throwback Challenge 2020: Johto
Rayquaza hat	Throwback Challenge 2020: Hoenn
Lucario hat	Throwback Challenge 2020: Sinnoh

Nidorino

Form	Availability
Party hat	Pokémon Day 2020 Raid Day: Mar 1, 2020

Gengar

Form	Availability
Party hat	Pokémon Day 2020 Raid Day: Mar 1, 2020 Knows Lick and Psychic

Eevee family

Form	Availability
Flower crown	Pokémon Day: February 26 - 28, 2019 Spring event 2020: April 9 - April 16, 2020
Party Hat	Pokémon Day 2020: Feb 25 - Mar 2

Mewtwo

Armored Mewtwo was released in celebration of Pokémon: Mewtwo Strikes Back—Evolution. It is currently the only Event Pokémon with base stats and a move pool separate from its base form's.

Form	Stats			Moves		Availability
	HP	Atk	Def	Fast Attacks	Charged Attacks
	214	300	182	Psycho Cut Confusion	Psychic Focus Blast Flamethrower Ice Beam Thunderbolt Shadow Ball (Legacy) Hyper Beam (Legacy) Psystrike (Legacy)	Aug 14, 2017 - Sep 20, 2018 (EX Raids) Sep 20 - Oct 23, 2018
Armored Mewtwo	214	182	278	Confusion Iron Tail	Rock Slide Dynamic Punch Earthquake Future Sight Psystrike (Legacy)	Jul 10 - Jul 31, 2019 Feb 25 - Mar 2, 2020 Knows Psystrike

Togepi

Form	Availability
Flower crown	Spring event 2020: April 9 - April 16, 2020

Wobbuffet

Form	Availability
Party hat	Adventure Sync Hatchathon: January 2 - 16, 2020

Stantler

Form	Availability
Bells	Holiday 2019: December 24, 2019 - January 1, 2020

Wurmple

Form	Availability
Party hat	Adventure Sync Hatchathon: January 2 - 16, 2020

Buneary

Form	Availability
Flower crown	Spring event 2020: April 9 - April 16, 2020

Shadow and Purified Pokémon

Main article: Shadow Pokémon (GO)

Shadow Pokémon are Pokémon that have been artificially altered by Team GO Rocket to be used in battle. Shadow Pokémon have angry, red eyes and a flaming, black aura. Upon being defeated, Team GO Rocket members will abandon one of the Shadow Pokémon used in battle, which the player can then capture. A player can use Candy and Stardust to purify a Shadow Pokémon, returning it to its natural states but with a white aura.

Shadow Pokémon cannot be traded, while Purified Pokémon always count towards a Special Trade, even if the receiving player has already obtained the purified form. These Pokémon also cannot be transferred to Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!.