theSLAYER

This event was distributed to those who purchased a 20th Anniversary Pokemon Clear 2DS (Red/Blue/Green/Yellow) from Japan,
that came bundled with a collection ticket see screenshot area.
The device also comes with a code card for a Serial Code for Mew, a code card for the respective theme, themed stickers , and pre-loaded with the Virtual Console title.
(The event is received in real life between March 19 to May 8, 2016. It can have any date on the PK7, due to transporter applying a date whenever it is transferred.)
The ticket would have to be taken to a participating Pokemon Center in Japan, in order to receive the Mew via trade.

As the DVs (Gen I IVs) are distributed with 15 in every slot,
it is not possible to obtain this as a Shiny when transferred normally through Pokemon Transporter.

This PK1 file will only be compatible with JPN version of the game.
 
 Species   Mew   Nickname   (default, in )   OT   ゲーフリ   TID   22796   Distribution   Trade   Location   the Kanto region   Dates   (any transfer date)   PID   Cannot Be Shiny   Games   VC: RGBY [JPN]    Lv. 5                                                                  Nature   Random   Ability   Synchronize (1)   Item   None   Bundled Item   None      Moves   (ITALIC means Relearnable)   Pound   (None)   (None)   (None)  
This is a video of my friends helping me to collect the Mew event!
(audio got muted by youtube due to proprietary song playing in the background)
 

This tool calculates a possible range for the Scalar Height used in Switch Core series games, based on the height seen in the summary screen of Pokémon Legends: Arceus.

This tool is still undergoing testing, so any constructive comments/feedback would be appreciated.
Use at your own risk.


This tool uses the logic in PKHeX.Core to calculate Absolute height (and subsequently displayed height) based on a scalar value. I just repurposed it and made the logic work for our purposes.
 

Notes:
1. You can either use ft&in or meters to search for the range.
In ft/in



In m



2. Having both can help to narrow down the range.
For example, this can be accomplished by viewing said specimen in an English save, then using Pokémon HOME (or trades) to transfer the Pokémon to a Japanese save.




and we have found the exact value!



You will not always get an exact value, but using both helps to narrow the range down.

This project was originally W2 only. And apparently the musician NPC in Opelucid was also bugged (but I didn't notice)

So I figured out how I did it previously, and made a B2 patch too (as well as fixed the NPC in Opelucid).

Things to note:
- No idea why the B2 patch is smaller (perhaps it is because I didn't import maps used by W2 into B2, while W2 did import maps for B2?)
[in case the previous point leaves anyone unclear, any game has both B2 and W2 maps in them.]
- BW Victory Road cannot be directly restored, cause the map sizes are different. That's beyond my expertise.
- If I'm not mistaken, you'll need the USA version of the game to use the patch. Below checksums are for clean games:
B2 MD-5: 1C5CE747E7ED4431E2044F123EC7C951
W2 MD-5: 32485892A6F36D80F7D9B54FB398EB12
- Utilizing the patches will probably shrink the game. (SDSME seems to do that?)
- I probably will not work on this further, so don't bother leaving suggestions or request.


Old thread:
 

Transferring Meltan from Pokémon Go to Let's Go Pikachu and Lets Go Eevee is the only way for the games to receive Meltan, as this Pokémon cannot be in encountered in those games. The Original Trainer for Pokémon Go was changed for privacy purposes.
Shiny Meltan (captured by @wo0ts) was temporarily added to the shiny pool during the Lunar New Year Event (2019).
During the Lunar New Year Event (2019) in Pokémon Go, shiny Meltan has a chance of appearing from using the Mystery Box, duration listed below.
This event also marked the first time a Shiny Meltan was made available to players.

The cool down between box usage were temporarily reduced to 3 days instead of the standard 7 days.


The slated period for the event was between Feb. 5, 2019, at 1 p.m. PST (GMT -8) to Mar. 4, 2019, at 11:59 p.m. PST (GMT -8).
   Go Park Transfer  Species   Meltan   TID   (recipient)   Distribution   Pokemon Go   Location   GO Park complex   Dates   Any date of transfer   PID   Cannot Be Shiny 
Can Be Shiny   Games   Let's Go Pikachu & Eevee   Nature   Random   Card Per Save   Multiples Allowed                                                               
  Lv. 1 to 40       Moves   (ITALIC means Relearnable)   (None)   (None)   (None)   (None)

   (no ribbons)  OT Name    Nickname   LANG  (recipient)    (default name)   JPN   (recipient)    (default name)   ENG   (recipient)    (default name)   FRE   (recipient)    (default name)   GER   (recipient)    (default name)   ITA   (recipient)    (default name)   SPA   (recipient)    (default name)   KOR   (recipient)    (default name)   CHS   (recipient)    (default name)   CHT  Format Ver.1.0.6-3, Post Updated Date:20190105_0509

Observation of the Level-Exp Bug
Around June 15th 2023, 10am (UTC), it was noticed by players on mobile, certain Pokémon being sent from GO to HOME has the Level of 1 with a Level 100 moveset.


It was subsequently discovered that in HOME on the Switch, they appeared to be Level 100.


It was also discovered that if you were to transfer such a Pokémon to Scarlet & Violet, viewing the Summary Screen would cause the game to crash.
It was around June 15th 2023, 3pm (UTC), that players noticed that this issue (level-exp bug), as well as issue where XXS from Pokémon GO becomes random height (XXS-Height randomization issue), were both fixed.
 
How the Level-Exp Bug works
According to a message left on Discord by Matt (@sora10pls)(Mattyoukhana), depending on a species' experience growth rate, HOME applies an incorrect experience value to the Pokémon upon transfer, with only the Medium Fast experience group being affected.

An example to look at would be Mythical or Legendary Pokémon. They are in the Slow experience group, and they got 0xFFFFFFFF written to their experience. As such, they appeared to be Level 1 or 100, due to how the device deals with the value of experience.  (Pokémon data don't have Current Level as a data point in the data structure; it is instead derived by the experience stored in it)
As such, it is dubbed the GO->HOME Level-Exp bug.

 
A 'fix' on the user end
As described by Matt, move the affected Pokémon into a compatible game, do not view the summary, and send it into a battle.
The experience it should have would then be fixed by the game, and it will become a regular Level 100.
 
Conclusion

The prevailing theory is that when attempting to fix the XXS becoming random height issue, Pokémon HOME borked the code for handling experience values to match the GO Trainer's level, thus creating this secondary issue. It is currently unknown if HOME will revert or fix the levels of Pokémon that were already transferred. (Pokémon that were sent into HOME during the buggy period currently continue to have bugged levels in HOME)
 
Additional info: Background for the XXS-Height randomization issue
With the launch of HOME v3.0.0, Pokémon from previous games could be transferred to Scarlet & Violet. In Scarlet & Violet, if the size of a Pokémon is the smallest or the largest (in terms of scale), it qualifies for a Mini Mark or a Jumbo Mark respectively. Thus, players would want to transfer the XXS or XXL Pokémon from Pokémon GO and obtain these marks.

In the initial weeks of HOME v3.0.0 launch, players have noticed that their XXS Pokémon from Pokémon GO were average sized when transferred to Scarlet & Violet, thus being unable to qualify for the Mini Mark. As it turns out, Pokémon HOME has been rerolling the Height and Weight values of any Pokémon that had 0 in both stats (explained in Route B on this page), and XXS Pokémon from Pokémon GO were caught in the crossfire.
 
Files and contributors
The files uploaded here are contributed by @theSLAYER and @sora10pls.
They have been dumped in HOME format (PH2) and converted to PKX via PKHeX for usage with the games.
The OT, TID, and SID has been changed for privacy purposes.

As these files stand, they'll be similar to a player transferring a Pokémon from GO and leveling it up to 100.
In some sense, the only 'special' copies would be the originals (those that have the GO stamp), with the bugged levels, in Pokémon HOME.

It is also important to note that the bugged originals in HOME cannot be traded via HOME.

This tool calculates a possible range for the Scalar Height used in Switch Core series games, from the rounded height value provided in Pokémon GO.

This tool is still undergoing testing, so any constructive comments/feedback would be appreciated.
Use at your own risk.


This tool uses the logic in PKHeX.Core of Absolute Height -> Scalar Height. I just repurposed it and made the logic work for our purposes.


Edited Note2: 0 in Height can safely be sent to HOME now.

Trade for Evolution Slowpoke
This Slowpoke was distributed at Trade For Evolution events as part of various school festivals around Japan. The first took place at the Kyoto Student Festival, with additional dates and locations as follows:
Wondercard ID 002 PID Random Games BW Type Local Wireless Dates 10.10.201010.24.2010 Nickname ヤドン Gender Random Level 30 Nature Random Ability Oblivious/Own Tempo OT きょうえん SID 00000 Location Pokémon Event Ribbon Souvenir Ribbon Ball Cherish Ball Held Item King's Rock Moves Confusion Disable Headbutt Water Pulse

The Old Sea Map was only available as an event Key Item exclusively for players with a Japanese copy of Pokémon Emerald,
which allowed players to reach the Faraway Island, and ultimately battle the Mythical Mew.

For players who rather not use the Mystery Gift to activate the event, simply use PKHeX's Event Flags > Research, and
For Pokémon Emerald: Check Flag 0316 and 2262, then proceed to add a Old Sea Map into the Key Items of the Bag.

This is the only Mew that can be encountered shiny legitimately. (excluding hacks or glitches)
ウルトラ Mew was a regular encounter, non-shiny.
ポケパ-ク Mew was RNG obtained by @suloku and @St. GIGA (and the OT was meant to mimic the PokePark event, and also Flawless IVs)
アイコ Mew was RNG obtained by @InsaneNutter
     Species   Mew   Nickname   (default, in )   OT   (recipient)   TID   (recipient)   Distribution   In-Game Encounter   Location   Faraway Island   Dates   (Various)   PID   Chance of Shiny   Games   Emerald                                                                Lv. 30    Nature   Random   Ability   Synchronize   Item   None    Moves       Pound   Transform   Mega Punch   Metronome
  Format Ver.1.0.6-2, Post Updated Date:20180512_0857

The UK and USA verson of the Eon Ticket event are up for download!
@ajxpk's gif for the Eon Ticket process:


Original Thread and Credits!
Source for images: http://ereader.no-intro.org/info.php?set=Resources (USA)

Deoxys had its first debut as a raid boss in the EX Tier raids globally, back in October 1st 2018. It however, would not be available shiny until it returned to Tier 5 raids during the Enigma Week event back in August 2020.
Even if you caught one earlier, the Deoxys could not be transferred to the main series games until the HOME v2.0.0 update, which supports Brilliant Diamond & Shining Pearl.

For this file to be transferable across games without any stats oddities, you cannot modify any immutable values.
Read here: Relevance of HOME tracker

Darkrai had its first debut in Tier 5 raids globally during the Halloween 2019 event. It however, would not be available shiny until the first Team GO Rocket Takeover event.
Even if you caught one earlier, the Darkrai could not be transferred to the main series games until the HOME v2.0.0 update, which supports Brilliant Diamond & Shining Pearl and Legends Arceus.

For this file to be transferable across games without any stats oddities, you cannot modify any immutable values.
Read here: Relevance of HOME tracker

Distribution Title Boo! A Pumpkaboo! Wondercard ID 523     PID Cannot Be Shiny Games XY Type Online Wi-Fi Dates Oct 1 - 31 2014 Species Pumpkaboo (Super) Nickname (default) Gender Male/Female Level 50 Nature Random Ability Pickup (1) or
Frisk (2) or
Insomnia (HA) OT Spooky2014 TID 10014 Location a lovely place Ribbon Event , Ball Cherish Ball Held Item Rocky Helmet Moves Trick-or-Treat Astonish Scary Face Shadow Sneak Relearn
Moves (None) (None) (None) (None) Receiving Text 0x2B Thank you for playing Pokémon! Please pick up your gift from the delivery girl in any Pokémon Center.  

This e-reader Pokemon was finally obtained, after @HaxAras managed to tracked a person with the complete set of e-cards.
Thanks @HaxAras!

ハッサム (Scizor) (M)
IVs: 0 HP / 0 Atk / 0 Def / 0 SpA / 0 SpD / 0 Spe
Ability: Swarm
Level: 50
Hasty Nature
- Fury Cutter
- Metal Claw
- Swords Dance
- Slash

Nobunaga's Black Rayquaza
This shiny, color-variant Rayquaza was distributed via Nintendo Wi-Fi Connection as well as through the Nintendo Zone, 3DS Stations, and at Pokémon Centers. It was distributed to promote Pokémon + Nobunaga's Ambition. It is based on Nobunaga's partner Pokémon from the game.
Wondercard ID 059 PID Random Games BW Type Wi-Fi / Local Dates 03.17.2012-04.16.2012 Nickname レックウザ Gender Genderless Level 70 Nature Random Ability Air Lock OT ノブナガ SID 00000 Location Faraway place Ribbon Classic Ribbon Ball Cherish Ball Held Item --- Moves Dragon Pulse Ancient Power Outrage Dragon Dance

Back in December 1999, players are able to obtain a YOSHIRA Mew by trade at Toys R Us stores in the United States, if they were within the first 1500 customers and also caught the Mew on their special "Peel & Win" sticker.

While the DVs are all identical (and not all 15), it can be seen that the Trainer IDs seem to be generated in ascending order.

Huge thanks to @Deoxyz for following up on this and getting it!

THIS POKEMON WILL NOT BE LEGAL WITH ANY VIRTUAL CONSOLE RELEASE
(AND BY EXTENSION, CANNOT BE TRANSFERRED TO GEN 7 AND ONWARD).

Check out the save that was dumped, and the full story here:
 

This gift was traded to players during a Christmas Celebration.

Players will select Gengar or Scizor, and the a Haunter or Scyther (w/ Metal Coat) is traded to the players,
and it will evolve upon receiving it.

This page also includes a simulated card, for the Haunter and Scyther.

The Christmas Lucky Egg code can also be received at this event.

It appears this trade event had a season 2 due to popular demand.

This Greninja is from an event raid held by Scarlet and Violet. Notably, with this event you get a chance to encounter Tera raids featuring a level 100 (Shiny locked) Greninja with the Poison Tera type.
This event runs from January 27 to January 29, and from February 10 to February 12, 2023.

If you're looking to import this file and fight the raid for yourself, link here.

These Eevee are from a raid event held by Scarlet and Violet. With this event, you get a chance to encounter Tera raids featuring Eevee with various Tera types.
This event ran from November 25 to November 27, 2022.
If you're looking to import this file and fight the raid for yourself, read this page.

This event was distributed to players as an egg, at New York Pokemon Center.
 
 Species   Chansey (EGG)   Nickname   (default, save lang)   OT   (recipient)   TID   (recipient)   Distribution   PCNY   Location   (fateful encounter)   Dates   Dec 16, 2004 
to Jan 02, 2005   PID   Chance of Shiny   Games   FR LG    Lv. 5      Nature   Timid    Ability   Serene Grace (2)   Item   None      Moves       Sweet Scent   Wish   (None)   (None)

This event is one out of two new Mega Evolving Pokemon distributed, Glalie International and Steelix Japan 3DS,
that is distributed to players for playing the Pokemon Omega Ruby and Alpha Sapphire Special Demo Version.

In the Special Demo, the Pokemon is encountered in a battle, with it's stats, nature, ability, and gender, fully randomized, as per any battle,
with the exception of it's Species, Level, and that it cannot be Shiny, being preset.
After capture, it can be nicknamed, and then can it be sent as a gift to the full versions of Pokemon Omega Ruby and Alpha Sapphire.

The language of the event is determined by the language of game save of the Special Demo Version,
so it's possible to receive a Pokemon with different Language of Origin from the save of the full versions of the game.
However, this Steelix can only be have Japanese as it's Language of Origin,
as only Japanese 3DS Special Demo Version can encounter this Steelix,
and the Special Demo Version for the Japanese Region does not have the language selection screen at the start of the Demo.
Even when not nicknamed in the Special Demo, this Pokemon will have it's Nickname Flag checked,
as long as the name it currently has is different from the default name of the species of the receiving game save's language.

The Trainer ID is randomly generated and assigned when starting the Special Demo,
and the Original Trainer will be Orlando ENG, FRE, GER, ITA, SPA or オメガ JPN or  오메가 KOR.
^ OT name languages refers to language of Special Demo, not Full versions.
Below shows the exact details of the contributed .PL6 and .PK6 file:
     Species   Steelix   Nickname   (default, save lang)   OT   オメガ   TID   29231   Distribution   Pokémon Link
(ORAS Demo)   Location   Pokémon Link   Dates   Oct 15, 2014 onwards   PID   Cannot Be Shiny   Games   Given to: JP 3DS: ORAS 
Preset as: AS                                                                Lv. 40    Nature   Random   Ability   Rock Head (1) or Sturdy (2)   Item   Steelixite   Card Per Save    -    Moves   (ITALIC means Relearnable)   Iron Tail   Crunch   Rock Slide   Screech   WC ID 0: 「Simulated Japanese ORAS Demo Steelix.」's receiving text 0x00 Thank you for coming to see the Pokémon Movie! Please pick up your gift from the delivery girl in any Pokémon Center.

   (no ribbons) Simulated Japanese ORAS Demo Steelix. Simulated Japanese ORAS Demo Steelix. Format Ver.2.1.2-2, Post Updated Date:20210823_1625
(The details were converted into a simulated file, which that file was then used as a HTML)

Movie 2013 Genesect
This Red Genesect was distributed at movie theaters playing the 16th Pokémon movie.
It was also distributed in the same manner at Fun Box stores in Taiwan from August 16th to September 15th.
Its Attack and Speed IVs are set to 31.
 
 Species   Genesect   Nickname   (default, save lang)   OT   えいがかん   TID   07133   Distribution   Local Wireless   Location   Pokémon Movie 13   Dates   Jul 13 to Sep 30, 2013   PID   Shiny PID   Games   BW B2W2    Lv. 100                                                                  Nature   Hasty   Ability   Download (1)   Item   Choice Scarf 
Wishing   Moves       Extreme Speed   Techno Blast   Blaze Kick   Shift Gear   WC ID 136: 「あかいゲノセクト　プレゼント」's receiving text 0x04 Thank you for coming to see the 2013 Pokémon Movie! Please pick up your gift from the deliveryman in any Pokémon Center.

This gift was distributed to players via Serial Code, to commemorate the launch of the TCG Expansion: Dragon Majesty.

For players in the US, the Serial Code cards can be received from GameStop stores, redeemable online from September 17 till December 20, 2018.
For players in the UK, the Serial Code cards can be received from Smyths stores, redeemable from September 17 to October 15, 2018.
For the rest of the players in EU, the Serial code can also be obtained from the Pokémon Trainer Club newsletter can be redeemed from October 19, 2018 onwards. The online redemption dates for the EU distribution likely also ends on December 20, 2018.
   Species   Poipole   Nickname   (default, save lang)   OT   Ultra   TID   091718   Distribution   Serial Code   Location   a lovely place   Dates   (Various)   PID   Shiny PID   Games   US & EU 3DS: USUM                                                                Lv. 40    Nature   Modest   Ability   Beast Boost (1)   Item   None   Bundled Item   None   Card Per Save   Only One Allowed    Moves   (ITALIC means Relearnable)   Venom Drench   Nasty Plot   Poison Jab   Dragon Pulse   WC ID 667: 「A peculiar Poipole!」's receiving text 0x2C Thank you for playing Pokémon! Please pick up your gift from the deliveryman in any Pokémon Center.

Classic A peculiar Poipole! This Shiny Poipole appears in radiant
white instead of its usual purple!
And knowing Dragon Pulse allows the
Ultra Beast to evolve into the powerful
Naganadel as soon as it levels up. Format Ver.1.0.6-3, Post Updated Date:20180918_1802

This event was distributed to a few lucky residents of the United Kingdom and the Republic of Ireland,
distributed during an event that celebrates the launch of Pokemon Sun & Moon.
As the DVs (Gen I IVs) are distributed with 15 in every slot,
it is not possible to obtain this as a Shiny when transferred normally through Pokemon Transporter.

This PK1 file will not be compatible with JPN version of the game.
 
 Species   Mew   Nickname   (default, in )   OT   GF   TID   22796   Distribution   Trade   Location   the Kanto region   Dates   (any transfer date)   PID   Cannot Be Shiny   Games   VC: RBY [Non-JPN]    Lv. 5                                                                  Nature   Random   Ability   Synchronize (1)   Item   None   Bundled Item   None      Moves   (ITALIC means Relearnable)   Pound   (None)   (None)   (None)
This is a video of @RupeeClock's collection of the hyper rare Mew!
 
 
(Also, it can be seen that the Event Staff's unit has a Restore Point function!)

Single Battle Strongest Class Metagross
This Pokémon was distributed at Pokémon Centers in Japan as part of a Single Battle Strongest Class Pokémon series. One of the five Pokémon could be obtained randomly during each of the distribution periods.
Period 1 ran from September 15 to 21.
Wondercard ID 111 PID Random Games B2W2 Type Local Wireless Dates 09.15.2012-10.28.2012 Nickname メタグロス Gender Genderless Level 100 Nature Random Ability Clear Body OT PC SID 00000 Location Pokémon Event Ribbon Classic Ribbon Ball Cherish Ball Held Item Choice Band Moves Bullet Punch Zen Headbutt Hammer Arm Ice Punch

This event was distributed to international players via a 3DS region-locked QR code on the main Pokemon website.
For Japanese players, it was distributed via a QR code on a Ga-ore disc with the QR code on it, collected only in theaters for the Volcanion and the Mechanical Marvel Movie.
(QR Code can be found in the screenshots segment of this posting)

This event is actually pre-programmed into the Pokemon Sun and Moon games, and it requires only the QR code to activate,
after the player has cleared the game (become the Champion).
 
 Species   Magearna   Nickname   (default, save lang)   OT   (recipient)   TID   (recipient)   Distribution   QR Code   Location   a lovely place   Dates   (Various)   PID   Cannot Be Shiny   Games   All Regions 3DS: SM    Lv. 50                                                                  Nature   Random   Ability   Soul-Heart (1) 
or Soul-Heart (2)   Item   Bottle Cap   Bundled Item   None 
Wishing   Moves   (ITALIC means Relearnable)   Fleur Cannon   Flash Cannon   Lucky Chant   Helping Hand