7 Essential Cheats For Pokémon Emerald SeaGlass (The Unique In-Game Codes You Need)

Are you ready to dive back into the Hoenn region with a charming, retro twist? As of today, December 11, 2025, the fan-favorite ROM hack, Pokémon Emerald SeaGlass, continues to captivate players with its stunning Game Boy Color (GBC) aesthetic and unique features. Created by the talented developer Nemo622, this hack is a complete visual overhaul of the classic Pokémon Emerald, featuring all Pokémon from Generations 1 through 3. The best part? Unlike most ROM hacks that rely solely on external programs, SeaGlass includes a revolutionary, built-in cheat system that makes unlocking powerful items easier than ever.

This guide cuts through the confusion of outdated codes to give you the most reliable, working cheats for the latest versions, including the highly-praised Version 3.0. Forget trying dozens of old GameShark codes that don't work; the true power lies in the secret in-game cheat device located right in your starting room. Here is your definitive list of essential codes to enhance your journey through the retro-styled Hoenn region.

The Definitive List of In-Game Pokémon Emerald SeaGlass Cheat Codes

The developer, Nemo622, introduced a unique and player-friendly method for activating cheats. Instead of using complex, multi-line GameShark or Action Replay codes, you simply need to interact with a specific object in your character's house and type in a simple keyword. This is the most stable and recommended way to cheat in Pokémon Emerald SeaGlass.

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How to Use the In-Game Cheat Device

Upon starting your game, you will find a GameCube or Cheat Device (often a small console) located in your bedroom in the starting house. Interacting with this device will open a text prompt, allowing you to enter the following case-sensitive codes. Once a code is entered, the corresponding items will be added to your bag.

• Access Point: The GameCube / Cheat Device in the player's bedroom.
• Activation: Enter the code exactly as shown (case-sensitive).
• Effect: Instantaneous item delivery to your bag.

Essential Item Codes (The Must-Haves)

These codes are crucial for players looking to quickly level up their team, capture rare Pokémon, or simply save time grinding for money. They provide an instant stack of 99 of the most valuable items in the game.

The WISHINGSTR code is particularly unique to SeaGlass, as it ties directly into the new minigames and events added to the Hoenn map, like the Rustboro Wishing Well. This allows you to quickly access rare items and potential Alolan forms that might be locked behind these new mechanics.

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Advanced Features & Traditional GameShark Codes (Use with Caution)

While the in-game codes cover the main needs (leveling, catching, and money), many veteran ROM hack players still look for traditional external codes for features like Walk Through Walls or Wild Pokémon Modifiers. It is important to know that standard Pokémon Emerald GameShark codes are NOT guaranteed to work in SeaGlass due to the extensive changes made to the game's code.

However, if you are using an emulator that supports external codes (like GameShark or Action Replay), you may try the following codes, which are commonly used in the base Emerald game. Use these with a strong disclaimer and always save your game beforehand.

External GameShark Codes (May Not Work in SeaGlass)

These codes are provided for reference only and are known to cause glitches or crashes if the ROM hack has significantly altered the memory addresses.

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Master Code (Required for many cheats):

• D8BAE4D9 4864DCE5
• A86CDBA5 19BA49B3

Walk Through Walls Code:

• 7881A409 E2026E0C
• 8E883EFF 92E9660D

Wild Pokémon Encounter (To be used with specific Pokémon IDs):

• 83007CEE XXXX (Replace XXXX with the Pokémon ID)

The most reliable method for specific Pokémon is often the in-game method, which allows you to Unlock Mons on DexNav (a feature mentioned in v3.0 updates), making it easier to track and find specific species from the Generation 1, 2, and 3 roster.

Why Pokémon Emerald SeaGlass is Worth Cheating For

Beyond the cheats, Pokémon Emerald SeaGlass offers a truly unique experience that makes using these quality-of-life codes worthwhile. The hack is a love letter to the classic GBC era, combining the robust mechanics of the Game Boy Advance (GBA) with the charming, 8-bit aesthetic of the Game Boy Color.

Key Features That Define SeaGlass v3.0:

• GBC Visual Overhaul: Every sprite, tile, and map texture has been redrawn to fit a cozy, retro, Game Boy Color look, giving the Hoenn region a completely fresh feel.
• Generations 1-3 Roster: The game features all 386 Pokémon from the first three generations, complete with updated move sets and abilities to keep the gameplay balanced.
• New Minigames and Events: The world is more interactive than ever with additions like a Scuba Diving competition in Pacifidlog Town and Pinball games used to unlock rare items.
• Fully Functional Battle Frontier: Unlike the base Emerald game, the Battle Frontier is now fully functional and accessible in the latest updates (v2.0 and later), providing a massive post-game challenge.
• Mono-Type Cheat Codes: Older updates (like v2.0) introduced specific mono-type cheat codes for players looking for a themed run, a feature that may still be accessible via the in-game device.

Whether you're using the 9RARECANDY code to quickly prepare a team for the Elite Four, or the MASTERBALL code to capture a rare Legendary Pokémon, these cheats simply allow you to enjoy the unique GBC aesthetic and new content, like the Battle Frontier and minigames, without the tedious grind. The convenience of the in-game cheat device, a feature rarely seen in ROM hacks, is a testament to Nemo622's dedication to a streamlined player experience. Always ensure you are playing the latest version (v3.0 or later) for the most stable and feature-rich gameplay.