Professor Oak
Pokemon Professor
About the JPN Pokemon Berry Glitch Shiny Zigzagoon Distribution:
This is the Japanese Pokemon Berry Glitch Shiny Zigzagoon distribution, this was found on the Japanese Interactive Multi-Game Demo Disc from January 2004.
The name of the glitch comes from the fact that on Pokemon Ruby and Sapphire the first thing a player will usually notice is that all Berries that have been planted have ceased growing. The glitch occurs 366 days after the game is first started, or 366 days after the internal battery is replaced.
Specially-marked demo discs were released to select stores across Japan, allowing players can visit these stores and download the patch from the disc. In addition, players will also receive a Shiny Zigzagoon holding a Liechi Berry as a bonus. However, since the demo disc program does not block fixed games, players can receive multiple Zigzagoon by downloading to the same cartridge again.
So with this demo disc you are able to get multiple shiny Zigzagoon's and fix the berry glitch on your JPN Pokémon Ruby and Sapphire games, result!
Interesting Information:
What is interesting about the Japanese Interactive Multi-Game Demo Disc from January 2004 is that the Pokemon Berry Glitch Shiny Zigzagoon doesn't appear to appear in the menus from what I can tell. However if you explore the file system on the disc you will find it exists under local > tgc > Ruby_And_Sapphire_Rev.tgc
You can extract the Ruby_And_Sapphire_Rev.tgc from the ISO and load it in the Dolphin emulator, you can also convert it to an ISO to use on real hardware with TGCtoGCM. However i've not been able to get this to work on real hardware, it will just crash to a black screen. Any help with this would be welcome.
For the banner details you will find the name of the disc is "ジラーチ配布ディスク2003年6月" which translates to "Jilachi Distribution Disk June 2003."
The banner description is "新ポケモン ジラーチが君の手に!" which roughly translates to "New Pokemon Jirachi is in your hands!"
So we can speculate the JPN Pokemon Berry Glitch Shiny Zigzagoon Distribution distribution is based on the the Wishing Star Jirachi distribution, which was distributed from June 1 to August 24, 2003 in Japan.
Interesting Information 2:
Pressing L+R+Y+START at boot will make the Berry Glitch Shiny Zigzagoon accessible on the main menu. This is documented in greater detail here by @CrystaL03.
Screenshots:

Download:
Download GameCube JPN Interactive Multi-Game Demo Disc from January 2004
Download Pokemon Berry Glitch Shiny Zigzagoon JPN GameCube Distribution ISO
Download Pokemon Berry Glitch Shiny Zigzagoon JPN GameCube Distribution TGC
The TGC was extracted from the demo disc, then converted to an ISO.
This is the Japanese Pokemon Berry Glitch Shiny Zigzagoon distribution, this was found on the Japanese Interactive Multi-Game Demo Disc from January 2004.
The name of the glitch comes from the fact that on Pokemon Ruby and Sapphire the first thing a player will usually notice is that all Berries that have been planted have ceased growing. The glitch occurs 366 days after the game is first started, or 366 days after the internal battery is replaced.
Specially-marked demo discs were released to select stores across Japan, allowing players can visit these stores and download the patch from the disc. In addition, players will also receive a Shiny Zigzagoon holding a Liechi Berry as a bonus. However, since the demo disc program does not block fixed games, players can receive multiple Zigzagoon by downloading to the same cartridge again.
So with this demo disc you are able to get multiple shiny Zigzagoon's and fix the berry glitch on your JPN Pokémon Ruby and Sapphire games, result!
Interesting Information:
What is interesting about the Japanese Interactive Multi-Game Demo Disc from January 2004 is that the Pokemon Berry Glitch Shiny Zigzagoon doesn't appear to appear in the menus from what I can tell. However if you explore the file system on the disc you will find it exists under local > tgc > Ruby_And_Sapphire_Rev.tgc
You can extract the Ruby_And_Sapphire_Rev.tgc from the ISO and load it in the Dolphin emulator, you can also convert it to an ISO to use on real hardware with TGCtoGCM. However i've not been able to get this to work on real hardware, it will just crash to a black screen. Any help with this would be welcome.
For the banner details you will find the name of the disc is "ジラーチ配布ディスク2003年6月" which translates to "Jilachi Distribution Disk June 2003."
The banner description is "新ポケモン ジラーチが君の手に!" which roughly translates to "New Pokemon Jirachi is in your hands!"
So we can speculate the JPN Pokemon Berry Glitch Shiny Zigzagoon Distribution distribution is based on the the Wishing Star Jirachi distribution, which was distributed from June 1 to August 24, 2003 in Japan.
Interesting Information 2:
Pressing L+R+Y+START at boot will make the Berry Glitch Shiny Zigzagoon accessible on the main menu. This is documented in greater detail here by @CrystaL03.
Screenshots:

Download:
Download GameCube JPN Interactive Multi-Game Demo Disc from January 2004
Download Pokemon Berry Glitch Shiny Zigzagoon JPN GameCube Distribution ISO
Download Pokemon Berry Glitch Shiny Zigzagoon JPN GameCube Distribution TGC
The TGC was extracted from the demo disc, then converted to an ISO.


of them!!! If it is a unique disc, than it will most likely have never leaked. Couldn't agree more! However if it is just a variant of the August 2003 disc, or possibly a few of the preceding months (which we don't have photographic evidence that they exist, possibly because there was only a few of them), than we just need the regular non variant one, and we could possibly find the jirachi distribution hidden on it. Similar to the zigzagoon one