Forum: gaming.stackexchange.com
Tags: <pokemon-series>
Title: Is it possible to trade Pokemon from the 1st generation games to the most recent ones?
Question: I know that you can trade Pokemon between games of the same generation (Gold/Silver, Ruby/Sapphire) and even trade between 1st gen and 2nd gen. However, I haven't been able to find a way to trade Pokemon so that I can play with my 1st generation Pokemon in HeartGold, for instance. If it is possible, how many steps would it take and what equipment would I need?

Answers:
sents: text: As of 2016, it is possible to trade from the Virtual Console editions of Pokémon Red, Blue, Green and Yellow to the new Pokémon Sun/Moon (Gen 7) via Pokémon Bank.
text: Unfortunately while Gen 6 (X/Y/
text: OR/AS) is compatible with Pokémon Bank, it is not possible to receive Gen 1 Pokémon in those games.
text: However, if we're talking about the original Gameboy cartridges, it can't be done.
text: The limits on trading are as follows: Generation 1 (Red/Blue/Green/Yellow) ↑↓
text: Both directions Generation 2 (Gold/Silver/Crystal)
text: X Trade
text: impossible Generation 3 (Ruby/Sapphire/Emerald/FireRed/LeafGreen)
text: ↓ One-way only, allows held items Generation 4 (Diamond/Pearl/Platinum/HeartGold/SoulSilver) ↓
text: One-way only, no items Generation 5 (
text: Black/White/Black 2
text: /White 2)
text: ↓
text: One-way only, no items Generation 6 (X/Y/Omega Ruby/Alpha Sapphire) ↓?
text: (Unreleased, backwards trading yet to be confirmed, Pokémon Bank currently forbids items) Generation 7 (Sun/Moon)
text: There are three main reasons you can't trade between Gen I/II and Gen III: The Pokémon data format changed significantly in Gen III, so the two were incompatible.
text: The GBA link cable uses a different voltage to the Gameboy link cable.
text: Even though a GBA can play old Gameboy games, it uses different circuitry than when playing GBA games, so the games' link cable functionalities are fundamentally incompatible.
text: Even if these weren't an issue, Nintendo never released a product that allowed trade from one to the next.
answer_details: author: gaming.stackexchange.com/users/3454/Joe Dovahkiin
score: 55
sents: text: You cannot trade from the 1st Generation or 2nd Generation into the 3rd Generation and onwards.
answer_details: author: gaming.stackexchange.com/users/85/Grace Note
score: 8
sents: text: While it may not be possible to transfer from Gens I and II to III, seeing as Gen III has FireRed and LeafGreen, it would be advisable to just play through that and trade upwards (to gens IV and V) from there..
answer_details: author: gaming.stackexchange.com/users/25649/Kade
score: 3
sents: text: Yes, you can trade from Generation 1 and 2 cartridges (not just Virtual Console) to more recent generations
text: However, it is not something that is officially supported by Nintendo.
text: The website Atop the Fourth Wall posted a how-to video showing that it was absolutely possible to go from Generation 1 and 2 cartridge all the way to Generation 6, the latest as of the video's creation.
text: Since it ends with the Pokémon Bank, you can presumably go to any generation after that.
text: A tutorial on trading up Pokémon off of Generation 1 and 2 cartridges and into the modern generations!
text: Yes, it IS possible.
text: It does involve using hardware to extract your save file from the cartridge and manipulating it using a save game editor.
text: Still, the end result is having your original team from a Generation 1 or 2 cartridge transferrable all the way to the Pokébank.
answer_details: author: gaming.stackexchange.com/users/47878/Thunderforge
score: 2
sents: text: This is technically possible now that the Gen 1 Vurtual Console games support migration to Sun and Moon.
text: It's not easy and is only doable with pricey hardware.
text: The steps are as follows: Dump your save game from your original Pokemon Red, Blue or Yellow cartridge to your PC using either a Retron 5, Retro Freak, or some other Game Boy cartridge reader.
text: You can build one with an Arduino if you're good at soldering and don't mind destroying a Game Boy for the cartridge slot.
text: Depending on the hardware you choose this step will be expensive or time consuming.
text: Hack your 3DS so that it can run homebrew.
text: I won't go into the steps for this because it's against Nintendo's terms of service but on the latest firmware it requires you to buy a game that has an exploitable defect.
text: This will cost you due to the popularity and rarity of those games.
text: Purchase and download the Virtual Console version of the same Pokemon game that you copied the save from and start a new game.
text: Use homebrew software such as SaveDataFiler to replace the Virtual Console game's save file with the one you dumped earlier from your original cartridge.
text: You now have a working copy of your original game's save file on your 3DS.
text: Use Pokemon Bank to migrate your original team to Pokemon Sun and Moon.
answer_details: author: gaming.stackexchange.com/users/11837/Kalamane
score: 1

Summary of the answers:
You can trade from Generation 1 and 2 cartridges.  You can also trade from Virtual console editions of Pokémon Red, Blue, Green and Yellow.
Opinions are split regarding this issue, some say it is possible and some say it is not. At any rate, it seems that it could technically be possible however it is difficult to do.