List of Pokémon with form differences (GO)
In Pokémon GO, several Pokémon have various forms, similar to the ones in the core series, but affected by completely different mechanics. All forms in GO are determined at the time of capture and cannot be changed. Although every species has one Pokédex entry each, a Pokémon is considered different from any of its alternate forms; this means that even if a player has one form of the Pokémon species registered in the Pokédex, an alternate form will still appear as a silhouette in the Nearby screen, and receiving one in a trade will be considered a Special Trade.
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 | Encounterable Pokémon | Evolution only |
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| Non-wild encounters (Eggs, Raid Battles, and Research tasks) |
               
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Mega Evolution
- Main article: Mega Evolution (GO)
Shadow and Purified
- Main article: Shadow Pokémon (GO)
Alternate forms
Pikachu
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Mewtwo
Mewtwo was exclusively available in level 5 Raid Battles. Its forms were available at different times. Unlike main games, Mewtwo does have an alternate form - Armored Mewtwo, which is based on the first movie remake reincarnation. This is the only event Pokémon to have completely different stats and movepool to its normal counterpart.
- Raid Battle dates
- Mewtwo
- August 14, 2017 - September 20, 2018 (EX Raid)
- September 20 - October 23, 2018
- September 16 - October 23, 2019
- September 25 - November 12, 2019 (EX Raid)
- February 20 - March 1, 2021
- July 16 - July 23, 2021
- Armored Mewtwo
- July 10 - July 31, 2019
- February 25 - March 2, 2020
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Unown
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 |     
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| Delayed Safari Zone (August 4 - 21, 2017) |
EUROPE |     
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| Pokémon GO Park (August 9 - 15, 2017) |
YOKOHAMA |   
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| Pokémon World Championships (August 18 - 20, 2017) |
WORLDS |    
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| Pokémon GO Safari Zone in Europe (September 16 - October 14, 2017) |
SAFARI | 
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| TwitchCon (October 20 - 22, 2017) |
TWITCH | 
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| Pokémon GO Week in Korea (November 10 - 12, 2017) |
SEOUL |
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| Pokémon GO Safari in Tottori (November 24 - 26, 2017) |
SAKYU |
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| RTX Convention, Sydney (February 3, 2018) |
RTX | 
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| Pokémon GO Safari in Chiayi (February 26 - March 3, 2018) |
CHIAYI and G, F and X |
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| SXSW, Austin (March 8 - 15, 2018) |
SXSW |
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| Game Developer Conference, San Francisco (March 21 - April 1, 2018) |
GDC |
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| Armageddon Expo, Wellington (March 30 - April 1, 2018) |
ARMAGEDDON | 
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| Comic Con, Utrecht (March 31 - April 2, 2018) |
COMIC CON |
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| PAX East, Boston (April 6 - 8, 2018) |
PAX |
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| Trafalgar Square Games Festival, London (April 7, 2018) London Games Festival (April 14, 2018) |
LONDON |
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| Rio2C Event (April 7 - 8, 2018) |
RIOTC |
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| E3, Los Angeles (June 12 - 14, 2018) |
LETSGO! | 
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| Fifa World Cup (June 16 - 17, 2018) |
VAMOS and BR (Brasil) PER (Peru) RG (Argentina) |
 
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| Fifa World Cup (June 17 - 18, 2018) |
VAMOS and EX (Mexico) CRI (Costa Rica) CUR (Uruguary) PN (Panama) URY (Uruguary) CL (Colombia) |
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| Pokémon GO Safari in Dortmund (June 30 - July 1, 2018) |
DORTMUND |
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| Japan Expo (July 5 - July 8, 2018) |
JAPAN EXPO | 
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| Pokémon GO Fest 2018 (July 14 - July 15, 2018) |
CELEBI? | 
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| San Diego Comic Con (July 19 - July 23, 2018) |
SD COMIC CON |
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| Pokémon GO Special Weekend (Softbank), Japan (July 26, 2018) |
SB |
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| Pokémon GO Special Weekend (Toho, Tully's & Joyfull), Japan (July 27, 2018) |
TJ |
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| Pokémon GO Special Weekend (McDonald's), Japan (July 28, 2018) |
MD |
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| Pokémon GO Special Weekend (Aeon), Japan (July 29, 2018) |
AE |
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| Pokémon GO Special Weekend, Korea (July 29, 2018) |
SLT |
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| Gamescom (August 21 - 24, 2018) |
GAMESCOM |
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| Pokémon 2018 World Championships (August 24 - 26, 2018) |
NASHVILLE |
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| Pokémon GO Safari in Yokosuka (August 29 - September 2, 2018) |
YOKOSUKA |
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| PAX West, Seattle (August 29 - September 3, 2018) |
PAX |
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| DragonCon, Atlanta (August 29 - September 2, 2018) |
DRAGONCON |
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| Pokémon GO Week in Korea (September 21 - 23, 2018) |
CHUSEOK |
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| NY Comic Con (October 4 - 7, 2018) |
NY COMIC CON |
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| Milan Games Week (October 5 - 7, 2018) |
MGW |
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| MAG 2018 (October 5 - 7, 2018) |
MAG! |
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| PAX West, Melbourne (October 26 - 28, 2018) |
PAX |
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| Paris Games Week (October 26 - 30, 2018) |
PGW |
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| MCM London Comic Con (October 26 - 30, 2018) |
MCM LONDON |
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| Lucca Comics & Games Con (October 26 - 30, 2018) |
LCG |
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| Pokémon GO Safari in Tainan (November 1 - 5, 2018) |
TAINAN ZONE | 
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| Pokémon GO Safari in Porto Alegre (January 25 - 27, 2019) |
PORTO ALEGRE |
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| Game Developers Conference, San Francisco (January 25 - 27, 2019) |
GDC |
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| Pokémon GO Special Weekend (Ito En & Tsutaya), Japan (April 6, 2019) |
TYNI |
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| Pokémon GO Special Weekend (7-11), Japan (April 7, 2019) |
VS |
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| Pokémon GO Safari in Sentosa (April 18 - 22, 2019) |
SENTOSA! |
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| Pokémon GO Week in Korea (May 4 - 6, 2019) |
SEOUL |
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| Pokémon GO Fest Chicago (June 13 - 16, 2019) Pokémon GO Fest Dortmund (July 4 - 7, 2019) Pokémon GO Fest Yokohama (August 5 - 12, 2019) |
WAKE UP! |
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| Ultra Bonus Week 1 (September 2 - 9, 2019) |
ULTRA |
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| Montreal Safari Zone (September 20 - 22, 2019) |
QUEBEC | 
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| New Taipei City Safari Zone (October 3 - 6, 2019) |
NTPC SAFARI |
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| Safari Zone St. Louis (March 27 - 29, 2020) |
ST LOUIS |
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| Safari Zone Liverpool (April 17 - 19, 2020) |
LIVERPOOL |
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| Safari Zone Philadelphia (May 8 - 10, 2020) |
PHILADELPHIA |
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| Pokémon GO Fest 2020 (July 25 - 26, 2020; August 26, 2020) |
GO |
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| Enigma Week (August 7 - 14, 2020) |
ULTRA |
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| Special Weekend (November 7 - 8, 2020) |
VZGH (USA) SBMK (Japan) SE (Mexico) |
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| City Explorer, Auckland (November 22, 2020) |
C |
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| Pokémon GO Fest 2021 (July 17 - 18, 2021) |
FG |
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| Ultra Unlock Part 1: Time (July 23 - August 3, 2021) Ultra Unlock Part 2: Space (August 6 - 17, 2021) Ultra Unlock Part 3: Sword and Shield (August 20 - 31, 2021) |
U |
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Spinda
Spinda has twenty pre-determined patterns (forms) in Pokémon GO's Pokédex (nine of which have been released) and 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, which both normal and shiny patterns are based on two Spinda from Going for a Spinda, specifically was added 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 |
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  Pattern 1 |
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  Pattern 2 |
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  Pattern 3 |
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  Pattern 4 |
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  Pattern 5 |
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  Pattern 6 |
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  Pattern 7 |
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  Pattern 8 |
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  Pattern 9 |
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Castform
While the current weather affects which form of Castform may spawn, unlike in other games they are locked to that form once caught. Additionally, even a change in weather will not affect previously-spawned Castform.
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Deoxys
Deoxys was exclusively available in level 5 Raid Battles. Its forms were available at different times.
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Burmy and Wormadam
Similar to main games, Burmy forms depend on the map enviroment, where they spawn in the wild. Unlike in other games however, they are locked to their form once caught.
 
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| Plant Cloak | Sandy Cloak | Trash Cloak |
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Cherrim
Similar to Castform, the current weather affects which form of Cherrim may spawn, but unlike in other games they are locked to that form once caught. Additionally, even a change in weather will not affect previously-spawned Cherrim.
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Shellos and Gastrodon
Similar to the Generation IV games, Shellos forms depend on their geographical location. Those Pokémon may hatch from 5 km Eggs picked in their respective regions since September 2019.
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Rotom
Currently, Wash Rotom is the only appliance form of Rotom to be released in Pokémon GO. Unlike in main games, they are locked to that form once caught.
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Giratina
Giratina was exclusively available in level 5 Raid Battles. Its forms were available at different times.
- Raid Battle dates
- Altered Forme Giratina
- October 23 - November 20, 2018
- March 28 - April 2, 2019
- September 23 - October 17, 2019
- March 13 - March 16, 2020
- May 5 - May 12, 2020
- July 26, 2020
- Origin Forme Giratina
- April 2 - April 29, 2019
- July 26, 2020
- October 9 - October 23, 2020
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Basculin
Similar to the Shellos family, Basculin forms depend on their real-world geographical location. Those Pokémon may hatch from 5 km Eggs picked in their respective regions.
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Deerling and Sawsbuck
Similar to Generation V games, Deerling forms are appearing in the wild based on the real-world meteorological season for that hemisphere (except the first season it was available, when it was based on the Northern Hemisphere season regardless of hemisphere).
- From October 2020 to November 2020, Autumn Form Deerling was available worldwide.
- From December 2020 to February 2021, Winter Form Deerling was available in the Northern Hemisphere and Summer Form Deerling was available in the Southern Hemisphere.
- From March 2021 to May 2021, Spring Form Deerling was available in the Northern Hemisphere and Autumn Form Deerling was available in the Southern Hemisphere.
- From June 2021, Summer Form Deerling was available in the Northern Hemisphere and Winter Form Deerling was available in the Southern Hemisphere.
Unlike in main games, they are locked to that form once caught.
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| Spring Form | Summer Form | Autumn Form | Winter Form |
Tornadus
Tornadus was exclusively available in level 5 Raid Battles. Its forms were available at different times.
- Raid Battle dates
- Incarnate Forme Tornadus
- February 4 - February 25, 2020
- March 6 - March 11, 2021
- April 27 - May 4, 2021
- Therian Forme Tornadus
- March 30 - April 13, 2021
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Thundurus
Thundurus was exclusively available in level 5 Raid Battles. Its forms were available at different times.
- Raid Battle dates
- Incarnate Forme Thundurus
- March 2 - March 31, 2020
- March 11 - March 16, 2021
- April 27 - May 4, 2021
- Therian Forme Thundurus
- March 16 - March 30, 2021
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Landorus
Landorus was exclusively available in level 5 Raid Battles. Its forms were available at different times.
- Raid Battle dates
- Incarnate Forme Landorus
- March 31 - April 28, 2020
- March 1 - March 6, 2021
- April 27 - May 4, 2021
- Therian Forme Landorus
- April 13 - April 27, 2021
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Genesect
Currently, Genesect, Burn Drive Genesect and Douse Drive Genesect are the only Genesect forms to be released in Pokémon GO and were exclusively available in level 5 Raid Battles.
- Raid Battle dates
- Genesect (Normal)
- August 14 - August 21, 2020
- Burn Drive Genesect
- January 5 - Janurary 10, 2021
- Douse Drive Genesect
- October 1 - October 12, 2021
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Furfrou
Furfrou can be groomed into one of nine different trims, some of them being exclusive to certain regions. Changing Furfrou's trim costs 25 Furfrou Candy and 10,000 Stardust. Heart Trim is the only form of Furfrou not yet released. Furfrou is the first non-Mega Pokémon to have a form-changing mechanic implemented in Pokémon GO.
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Pumpkaboo and Gourgeist
Pumpkaboo and Gourgeist can be of Small, Average, Large and Super Size. Larger sizes of Pumpkaboo are rarer to encounter in the wild. Different sizes have also different base stats. Super Size variants have different, lower pitched cries than the other forms.
Unlike in main games, the different sizes of Pumpkaboo and Gourgeist do have different menu sprites.
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Xerneas
Xerneas has two forms: Neutral Mode and Active Mode. There is no gameplay difference between them. It appears in Active Mode in battles, in capture encounters, and when at a Gym as a Raid Boss. It appears in Neutral Mode in all other instances, such as when viewing its summary screen and as a Buddy Pokémon.
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| Neutral Mode | Active Mode |
Hoopa
Hoopa has two forms it can change between. To be able to change its form, the player must complete the second step of Mischief Unbound Special Research. Changing Hoopa's form from Hoopa Confined to Hoopa Unbound requires 50 Hoopa Candy and 10,000 Stardust, while changing Hoopa Unbound to Hoopa Confined requires 10 Hoopa Candy and 2,000 Stardust.
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Event Pokémon
Event Pokémon, originally 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. Event forms can evolve and retain the costume after doing so. Since July 2021, event forms (except Clone Pokémon for unknown reason) do have own category in the Pokédex of Pokémon GO. Since event Pokémon are unique to Pokémon GO, they cannot be transferred to Pokémon: Let's Go, Pikachu! and Let's Go, Eevee! and Pokémon HOME.
| Form | Pokémon | Evolution only | Availability |
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| Festive hat |  
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| Party hat |  
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| Cap Pikachu |  
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| Witch hat |  
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| Summer-style |  
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| Squirtle Squad sunglasses | 
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| H.F. Custom Cap | 
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| Flower crown |  
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Happiny
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Blissey |
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| Detective Pikachu | 
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| Armored Mewtwo | 
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| Straw hat | 
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| Shedinja Costume | 
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| Cubone Costume | 
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| Yamask Costume | 
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| Mimikyu Costume | 
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| Beanie hat |  
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| Bells | 
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| Party hat (green) | 
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| Party hat (red) | 
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| Clone | 
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| Cosplay Pikachu | 
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| Safari hat | 
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| Flower hat | 
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| Charizard hat | 
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| Umbreon hat | 
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| Rayquaza hat | 
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| Lucario hat | 
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| Flying Pikachu | 
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| Pikachu visor | 
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| Bow | Smoochum |
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| Top hat and bowtie | 
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| Top hat | Shinx |
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| Backwards cap | Croagunk |
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| Mega Banette costume | 
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| Litwick costume | 
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| Explorer | 
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| Winter Carnival | 
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| Holiday ribbon | 
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| New Year's hat |  
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| 2020/2021 glasses | 
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| Meloetta hat | 
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| Plaid ribbon | Butterfree |
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| Bean cap and glasses | Sneasel |
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| Collar | Blitzle |
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| Halloween Mischief | Pikachu |
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| Piplup |
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| Drifblim |
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| Lucas Hat | Turtwig |
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| Chimchar |
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| Piplup |
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| Dawn Hat | Turtwig |
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| Chimchar |
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| Piplup |
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| Holiday scarf | Spheal |
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| Holiday cloak | Glaceon |
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See also
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This article is part of Project Sidegames, a Bulbapedia project that aims to write comprehensive articles on the Pokémon Sidegames. |
