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Pokémon Emerald

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This page contains changes which are not marked for translation.

Title Screen

Pokémon Emerald Version

Also known as: Pocket Monsters Emerald (JP)
Developer: Game Freak
Publishers: The Pokémon Company (JP), Nintendo (INT)
Platform: Game Boy Advance
Released in JP: September 16, 2004
Released in US: May 1, 2005
Released in EU: October 21, 2005
Released in AU: June 9, 2005

AreasIcon.png This game has unused areas.
DevTextIcon.png This game has hidden development-related text.
MusicIcon.png This game has unused music.
SoundIcon.png This game has unused sounds.
TextIcon.png This game has unused text.
SoundtestIcon.png This game has a hidden sound test.
RegionIcon.png This game has regional differences.

ProtoIcon.png This game has a prototype article
NotesIcon.png This game has a notes page
DCIcon.png This game has a Data Crystal page

Pokémon Emerald is an updated version of Ruby and Sapphire that pits the player against Team Aqua and Team Magma, adds a new Deoxys form, and introduces the Battle Frontier.

To do:


Read about prototype versions of this game that have been released or dumped.
Prototype Info
Miscellaneous tidbits that are interesting enough to point out here.

Debugging Tools

To do:
Search for more.

Sound Check

Emerald JP SoundTest.png

Japanese Emerald has a Sound Check like Ruby, Sapphire, FireRed, and LeafGreen, and akin to the latter it was removed in localizations.

To access it, patch 0x301AC to 21 83 0E 08 to replace the Options entry on the main menu with a call to Sound Check.

The changes to the "stereo" entry in the Driver Test made in FireRed and LeafGreen were carried over to Emerald.

Unused Music

Emerald contains all the unused tracks with the same IDs from Ruby and Sapphire, except the track at ID $01D3, the Goldenrod Radio Tower invasion track from Gold, Silver, and Crystal, which has been removed. This game also contains the entire soundtrack from FireRed and LeafGreen, although only a few music tracks from that particular soundtrack are used in Emerald.

In the sound test, the tracks from FireRed and LeafGreen are prefixed with "RG". MUS-KAIHUKU remains unused; it is now labeled MUS-RG-KAIHUKU, and its new ID is 01ED.

Unused Map Data

The maps from the Pokémon Festa 2002 demo of Ruby and Sapphire are still in Emerald, but their event data has been deleted.

The Magma Hideout maps used in Ruby and unused in Sapphire are also unused in Emerald, as well as the Contest Hall, Seafloor Cavern, Cave of Origin, and the unused Lilycove City Poké Mart maps from Ruby and Sapphire. The unused duplicate landmark names for Meteor Falls, Fiery Path, and Jagged Pass also remain.

The landmark name for the version-based evil team hideout from Ruby and Sapphire is now unused. Pokémon caught in the old Magma Hideout or Aqua Hideout preserve their caught location, but it is rendered as "HIDEOUT" (Japanese: アジト, Hideout) like in Ruby and Sapphire.

The quirky landmark C4 from FireRed and LeafGreen is now unused and was renamed to "SPECIAL AREA" (Japanese: あかみどりとくしゅ, Red & Green Special).

Navel Rock and Birth Island have their own landmarks for Emerald as IDs D3 and C8, respectively, whereas the original IDs from FireRed and LeafGreen are AE and BB. This distinction may be important as there is no known distribution of the Aurora Ticket for Japanese Emerald, meaning that Deoxys caught in Emerald's Birth Island could be treated as illegitimate if their language byte is set to Japanese.

Elementary, my dear Cactus.
This needs some investigation.
Discuss ideas and findings on the talk page.
Specifically: How is such a Deoxys recognized by modern Pokémon games and services like Bank?

Emerald added an optional rival fight in Rustboro City. In the released game, you cannot walk out the city without triggering a cutscene with the rival that registers the rival in your PokéNav and prompts for a fight. You can get around this line of triggers only by teleporting back to Petalburg by never using the Pokémon Center in Rustboro and then using Teleport or by blacking out, in which case you never run into your rival. Perhaps because of this potential situation, there is another trigger in front of the doorway into Mr. Briney's house, and this will trigger a different cutscene with the rival (where the rival exits Mr. Briney's house) which also registers the rival and offers the same battle as the Rustboro cutscene. However, due to a programming oversight, the trigger in front of Mr. Briney's house is never activated, so this cutscene is left unused in the map scripts.

Unused Graphics


Shiny Celebi

Pokemon Emerald Shiny Celebi.gif

Because the only way to obtain it legitimately was through distributions, none of which allowed for a Shiny, the Shiny version of Celebi was left unobtainable through normal means. It can still be seen when a Shiny Ditto or Mew Transforms into Celebi, however.


Unused Birch Spritesheet


There is an unused uncompressed sprite sheet in location 557A90 to 55A94F in between the used Birch opening sprite and palette. This contains the following clockwise from top left:

  • A duplicate of the used Beauty Trainer Class sprite.
  • An unused seemingly early design of Professor Birch with both hands in his pockets and different-colored shorts.
  • A duplicate of the Birch sprite from the opening sequence in Ruby and Sapphire, unused in Emerald.
  • A duplicate of the Birch sprite used in this game's opening sequence.

Unused Weather

The unused weather types from Ruby and Sapphire remain so in Emerald.

Unused Wild Held Items

Some Pokémon, when encountered in the wild, have a chance of holding an item. Held item data also exists for some Pokémon which cannot be caught in the wild in the final game, rendering such assignments unused.

# Pokémon Held Items Note
012 Butterfree (5%) Silver Powder
015 Beedrill (5%) Poison Barb
022 Fearow (5%) Sharp Beak
027 Sandslash (5%) Quick Qlaw
035 Clefairy (5%) Moon Stone (50%) Leppa Berry
036 Clefable (5%) Moon Stone (50%) Leppa Berry
038 Ninetales (50%) Rawst Berry
046 Paras (5%) Big Mushroom (50%) Tiny Mushroom
047 Parasect (5%) Big Mushroom (50%) Tiny Mushroom
058 Growlithe (100%) Rawst Berry
059 Arcanine (100%) Rawst Berry
061 Poliwhirl (5%) King's Rock
062 Poliwrath (5%) King's Rock
064 Kadabra (5%) TwistedSpoon
065 Alakazam (5%) TwistedSpoon
068 Machamp (5%) Focus Band
075 Golem (5%) Everstone
079 Slowpoke (5%) King's Rock
080 Slowbro (5%) King's Rock
083 Farfetch'd (5%) Stick
085 Dodrio (5%) Sharp Beak
090 Shellder (5%) Big Pearl (50%) Pearl
091 Cloyster (5%) Big Pearl (50%) Pearl
094 Gengar (5%) Spell Tag
104 Cubone (5%) Thick Club
105 Marowak (5%) Thick Club
110 Weezing (5%) Smoke Ball
113 Chansey (5%) Lucky Egg
117 Seadra (5%) Dragon Scale
121 Starmie (5%) Star Piece (50%) Stardust
122 Mr. Mime (5%) Leppa Berry
124 Jynx (100%) Aspear Berry
126 Magmar (100%) Rawst Berry
143 Snorlax (100%) Leftovers
147 Dratini (5%) Dragon Scale
148 Dragonair (5%) Dragon Scale
149 Dragonite (5%) Dragon Scale
151 Mew (100%) Lum Berry Available though a limited event in Japan.
161 Sentret (5%) Oran Berry
162 Furret (5%) Sitrus Berry (50%) Oran Berry
171 Lanturn (5%) Yellow Shard
173 Cleffa (5%) Moon Stone (50%) Leppa Berry
186 Politoed (5%) King's Rock
199 Slowking (5%) King's Rock
200 Misdreavus (5%) Spell Tag
208 Steelix (5%) Metal Coat
215 Sneasel (5%) Quick Claw
230 Kingdra (5%) Dragon Scale
238 Smoochum (100%) Aspear Berry
240 Magby (100%) Rawst Berry
242 Blissey (5%) Lucky Egg
250 Ho-oh (100%) Sacred Ash Available though a limited event in America and Japan.
251 Celebi (100%) Lum Berry
267 Beautifly (5%) Silver Powder
269 Dustox (5%) Silver Powder
284 Masquerain (5%) Silver Powder
295 Exploud (5%) Chesto Berry
301 Delcatty (5%) Leppa Berry
306 Aggron (5%) Hard Rock
315 Roselia (5%) Poison Barb Was available in Ruby/Sapphire.
317 Swalot (5%) Big Pearl
323 Camerupt (100%) Rawst Berry
332 Cacturne (5%) Poison Barb
337 Lunatone (5%) Moon Stone Was available in Sapphire.
356 Dusclops (5%) Spell Tag Was available in Ruby.
362 Glalie (5%) Never-Melt Ice
372 Shelgon (5%) Dragon Scale
373 Salamence (5%) Dragon Scale
374 Beldum (5%) Metal Coat
375 Metang (5%) Metal Coat
376 Metagross (5%) Metal Coat
385 Jirachi (100%) Star Piece

Altering Cave

As with FireRed and LeafGreen, Mareep, Aipom, Pineco, Shuckle, Teddiursa, Houndour, Stantler, and Smeargle were also meant to replace the Zubat found in Altering Cave after using Mystery Gift.

The event distribution was probably scrapped because the evolutionary lines of these Pokémon can be obtained from Colosseum. They can instead be found in Emerald in the extended area of the Safari Zone (except Smeargle, which is found in Artisan Cave instead). There is a change from FireRed & LeafGreen however: Each of the wild Pokémon can hold an item that could not otherwise be obtainable 5% of the time in Emerald!

Thank you for using the MYSTERY
GIFT System.

There appears to be a rumor about
rare POKéMON sightings.

The sightings reportedly came from

Perhaps it would be worthwhile for
you to investigate this rumor.

Altering Cave Held Items

The Pokémon encountered in Altering Cave are programmed to each have a 5% chance of holding an item that are exclusive to this location, and this event. All items cannot be obtained anywhere else in Emerald alone.

# Pokémon Item Notes
179 Mareep Ganlon Berry This berry could only be obtained in Colosseum/XD, or through certain events
190 Aipom Berry Juice Apparently Shuckle isn't the only one to have Berry Juice after all...
204 Pineco Apicot Berry This berry could only be obtained in Colosseum/XD, or through certain events
213 Shuckle Berry Juice Wild Shuckle hold Oran Berries in the Safari Zone
216 Teddiursa Petaya Berry This berry could only be obtained in Colosseum/XD, or through certain events
228 Houndour Big Mushroom Big Mushrooms are otherwise unobtainable in Emerald
234 Stantler Petaya Berry This berry could only be obtained in Colosseum/XD, or through certain events
235 Smeargle Salac Berry This berry could only be obtained in Colosseum/XD, or through certain events

Berry Juice

The only source of Berry Juice in any of the Generation III games would've been as a held item on wild Shuckle in FireRed and LeafGreen, but the item is effectively unused because the Altering Cave event was never used. Wild Shuckle in Emerald instead hold Oran Berries when encountered in the Safari Zone. If, however, a Wonder Card containing the Altering Cave event was injected into a Pokémon Emerald save, wild Shuckle & Aipom(!?) would have a 5% chance of holding a Berry Juice.

PokeRS berryjuice.png

A 100%
pure juice
that restores HP
by 20 points.

Development Text

Multiple cases of miscellaneous development text are present in the ROM.

GameFreak inc.

pokemon ruby version

Build Dates

2004 06 30 18:43
2005 02 21 11:10
2005 07 01 18:30
2005 07 07 18:00
2005 07 11 16:55

Regional Differences

Title Screen

Japan US
Pocket Monsters - Emerald (Japan).png Pokémon Emerald-title.png

The logo is different and the "Push Start Button" text instead reads "Press Start".

e-Reader Support

Similarly to Japanese FireRed and LeafGreen, Japanese Emerald contains e-Reader support and its Mystery Gift system uses it in addition to the Game Boy Advance Wireless Adapter, specifically for the Pokémon Battle Card-e+ Emerald set that changes the NPC Trainers encountered in Trainer Hill. When in Wireless Adapter mode, its Japanese name is ふしぎなおくりもの (focus on the giver), while in e-Reader mode its Japanese name is ふしぎなもらいもの (focus on the receiver); both names were translated as Mystery Gift in English.

Like Ruby and Sapphire, Japanese Emerald also supports the Mystery Event system (ふしぎなできごと), which requires the e-Reader. It was used for the Eon Ticket distribution between December 9, 2006 and January 5, 2007 for Ruby, Sapphire, and Emerald in Japan.

Overseas, Emerald only supports the Wireless Adapter mode of the Mystery Gift system from FireRed and LeafGreen, although it still contains code for Mystery Event and the e-Reader mode of Mystery Gift.

To do:
Confirm this last part.

Player's House

Japanese Emerald has a minor audio oversight where the moving Vigoroth incorrectly use Machoke's cry, which was fixed in western releases of Emerald. These Pokémon were changed from Machoke in Ruby and Sapphire, where they play their correct cry.

Faraway Island


The Old Sea Map is an event item that allows the player to board the S.S. Tidal from Lilycove City to access Faraway Island and subsequently catch Mew. However, as it was only distributed in Japan during Pokémon Festa 2005, the item is unobtainable in western versions of Emerald, thus rendering the associated content unused.

To do:
Other unused content beyond the item icon should be here, too.

Birth Island

Because the AuroraTicket was never distributed to Emerald in Japan, Birth Island, and thus the ability to catch Deoxys, is completely inaccessible in the Japanese version. The only way to obtain Deoxys in the Japanese version of Emerald is by trading one from FireRed and LeafGreen.

Sootopolis City

There is an NPC in Sootopolis City who would host battles using Mystery Gift, leaving only the NPC and the stairs blocked by trees. However, no e-Reader Cards were released for this feature even in Japan, as the only Battle-e cards released for Japanese Emerald were for Trainer Hill rather than Sootopolis City.[citation needed]

To do:
Check whether it's Mystery Gift or Mystery Event in Japanese Emerald.

Trick House Puzzle Room 4

Japanese English
PKMN-Emerald-Trick-House-JP.png PKMN-Emerald-Trick-House-EN.png

In the international versions, the layout of Trick House Puzzle Room 4 was altered to make two passageways wider. The first boulder was also removed; in the Japanese version, it's a beginner's trap since the player can block the narrow passageway if they push the boulder to the right.

Despite the change, it's still possible for the player to get trapped in the Trick House in all versions.

(Source: luckytyphlosion (theory re: becoming trapped), ChickasaurusGL (video of boulder reset detail), Altfalcon (how to trap the player in all versions))

Aqua Hideout Dive Glitch

"Would you like to use DIVE here?"

In Japanese Emerald, due to a bug, it is possible to Dive in the deep water tiles found on Aqua Hideout B2F after saving and rebooting the game. Because the water is not programmed to lead anywhere, the game throws the player back to warp 0 in entry 0 of map group 0, which is Petalburg City.

This was fixed in western versions of Emerald by not allowing the player to Dive in any circumstances.

This does not happen in Ruby and Sapphire as the entrance to the Magma/Aqua Hideout (game-dependent) is blocked after obtaining the Mind Badge, which is required to use Dive outside of battle.

(Source: Evie (ChickasaurusGL) 🌺)

Special Wallpaper Layout

PE-Ribbonwallpaper.png PE-Pluslewallpaper.png PE-Pluswallpaper.png

In Emerald, players can unlock custom wallpapers by giving special codes to Walda's father in Rustboro City. In the international versions, the ribbon background and the cross, bolt, and Plusle symbols were removed. The latter two may have been removed due to semi-unintentional resemblance of the Red Cross.

(Source: Bulbapedia, Magic)