Pokémon Crystal Version DLC (Lost Mobile Adapter GB content, Japan-only)

Pokémon Crystal Version for Game Boy Color was released in Japan in 2000, and elsewhere in 2001. It took the story and gameplay of the earlier Pokémon Gold Version and Pokémon Silver Version and enhanced it, with storyline additions, graphical upgrades, and a few new game mechanics. However, while the gameplay was enhanced worldwide, nowhere was it more enhanced than in Japan.

In Japan, an accessory compatible with the Game Boy Color and Game Boy Advance was released called the Mobile Adapter GB.[1] It could be used to attach a player's Game Boy Color or Game Boy Advance to their mobile phone, allowing them to connect to the Internet and engage in online multiplayer activities or download new content to their games. The Mobile Adapter GB was not released outside of Japan, likely due to the fact that at the time, cell phones outside Japan were neither as common nor as technologically advanced as those in Japan.

Pokémon Crystal Version was one of the several games compatible with the accessory. The Japanese version of the game has a Pokémon Communication Center (abbreviated PokéCom Center) in place of the Pokémon Center in Goldenrod City[2] (international versions have much of this data intact and even translated, but unused[3]). Using the Mobile Adapter GB, players could go to the PokéCom Center and battle and trade with other players across the nation using mobile Internet service. Downloadable content was also available. When data is downloaded, players can go to the PokéCom Center to receive it. DLC included items such as the GS Ball, Bluesky Mail, and Mirage Mail as well as news about other players who used the online service, viewable on the Pokémon News Machine. There were also a couple of exclusive minigames, including Chieko Dice and a ten card quiz hosted by a time-traveling girl named Chieko. Dialog for certain NPCs would also change depending on downloaded updates. Most of these services had fees attached to them, with Pokémon News having a monthly fee of ¥100.[4][5]

Additionally, the service could change the Battle Tower and data for timed mobile battles could be transferred to the Nintendo 64 game Pokémon Stadium 2 via the Nintendo 64 Transfer Pak.[6]

The mobile service shut down on December 14, 2002, due to limited commercial success and low user traffic.[7] This meant no new updates and access to DLC was impossible. The downloaded data is stored in the game's RAM, which is backed by a battery. Batteries of Pokémon games are known to drain relatively quickly, particularly Pokémon Gold, Silver and Crystal Versions due to the fact that the battery supports an in-game clock that is constantly running, even when the game isn't being used. This means that when the battery dies, the Mobile data is erased as well as the save data. This makes the possibility of any Mobile patches still existing on any cartridge very unlikely. However, there are attempts at emulating the Mobile Adapter GB and the protocol for that has been documented. [8]


Title screen and menus
Mobile Trade Center
(JP) Egg ticket event
Unfinished english translation
Unused western PCC Administration Office
Unused western Mobile Stadium menu
Unused western Mobile Trade Center
(JP) Stadium 2 Mobile Stadium music


  1. Mobile Adapter GB information at Bulbapedia. Retrieved 25 September '15.
  2. Pokémon Communication Center information at Bulbapedia. Retrieved 25 September '15.
  3. Pokémon Crystal Version at The Cutting Room Floor wiki. Retrieved 25 September '15.
  4. Pokémon Mobile System GB information at Bulbapedia. Retrieved 25 September '15.
  5. Pokémon Crystal Version Mobile content preservation project at ASSEMblergames forums. Retrieved 25 September '15.
  6. Mobile Stadium information at Bulbapedia. Retrieved 25 September '15.
  7. Mobile Adapter GB information at Bulbapedia. Retrieved 25 September '15.
  8. Emulating the Mobile Adapter GB at Glitch City. Retrieved 18 October '16.



Anonymous user #1

9 months ago
Score 0++
I heard from some guy in Japan that you could catch zapdos at the radio tower


9 months ago
Score 1++
"Some guy in Japan" isn't a great source. You might as well say "My cousin's uncle's brother who works for Nintendo" like back in the Pokémon days on the playground.

Anonymous user #2

8 months ago
Score 0++
He also said you could catch celebi, and battle your friends


3 months ago
Score 0++
Now, this much is true.

Anonymous user #3

2 months ago
Score 0++
So why is this page tagged as found? Is there really no hope of ever finding it?


2 months ago
Score 0++
That's a good question. I created this article specifically about the DLC, not the method of getting it.


26 days ago
Score 0++

As fishy as the Zapdos thing sounds, it is something I heard back when this came out. That it was something you could do or at the very least it was planned. My memory on it is sketchy because I didn't really care since I knew I wouldn't come over here.

That was also the time where Pokemon rumors were rampant, people didn't believe Ash saw Ho-oh even after Ho-oh was a confirmed thing, and places still felt pretty far away even without the internet. Sure they still do but they felt farther then. But I think if it -was- a confirmed thing, it'd be on a site like Serebii. I'm just saying he didn't randomly pull it out of his ass and it's something I've heard about this for a LONG time.
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