Pokemon Prism: Everything You Need to Know

Pokemon Prism

Creator: Koolboyman

Progress: Completed 

Platform: GameBoy Color

Hack of: Pokemon Crystal

Pokemon Prism is a rom hack of Pokemon Crystal. This rom hack’s story takes place in a new region called Naljo.  

The game improves upon Pokemon Crystal by introducing new mechanics and refining the existing gameplay. 

Who is This Game For?  

You should play this game if you miss Pokemon Gold, Silver, or Crystal and are looking to experience it in a new way. 

However, this game may not be your cup of tea if you’re not used to GameBoy Color’s vintage graphics. If so, I recommend checking out Pokemon Sacred Gold or Pokemon GS Chronicles


Pokemon Prism 1 Pokemon Prism 2

Pokemon Prism 3 Pokemon Prism 4

Features and Additions

New and Old Regions

The game creators have come up with a huge new region called Naljo. It’s bigger than the Johto region. 

You can also visit Pokemon Brown’s Rijon region, Pokemon Glazed’s Tunod region, and the original Kanto and Johto regions. 

Pokemon from Gen 1 to 4

You don’t have to limit yourself to Gen 2 in this rom hack. Pokemon Prism boasts 253 Pokemon from Gen 1 to 4. Plus, some legendary Fakemon. 

Trainer Customization

You don’t have to play with the pre-made character. In Pokemon Prism, you can customize your character through 12 trainer options (6 male, 6 female).

Play as Your Pokemon

Some areas are restricted. Here, only Pokemon can enter. If you want to explore these areas, you’ll need to send the first Pokemon in your party in there. 

New Types

The game creators introduced tons of new stuff here. There are three new Pokemon types i.e. Gas, Sound, and Fairy. 

You are probably already aware of Fairy-types so here’s how Gas and Sound-types work. 

Gas-type moves:

  • Super effective against: Fighting, Fire, and Fairy-types
  • Not effective against: Rock, Sound, Grass, and Ice-types

Gas-type Pokemon: Koffing, Weezing, Gastly, Haunter, Gengar, Torkoal

These Pokemon can resist Fighting, Fairy, and Ground-types. But are weak to Fire, Grass, Electric, and Tri-types. 

Sound-type moves: 

  • Super effective against: Ghost, Steel, and Water-types
  • Not effective against: Fighting, and Bug-types
  • Have zero effect against: Sound-types

Sound-type Pokemon: Igglybuff, Jigglypuff, Wigglytuff, Misdreavus, Mismagius, Whismur, Loudred, Exploud, Chingling, Chimecho, Porygon-Z. 

These Pokemon can resist Rock, Steel, Gas, and Water-types. But are weak to Fighting, Bug, Electric, and Tri-types. 

New Moves

Just like new Pokemon types, there are new moves in this game as well. This includes rare types only found on some moves i.e. Tri and Prism-type. 

Tri Attack:

  • Super effective against: Flying, Bug, Gas, Sound, and Grass-types. 
  • Not very effective against: Fighting, Rock, Fire, Water, and Dragon-types
  • Have zero effect against: Ground-types

Prism Spray:

This move randomly selects another type every time it is used. 

How to Download 

You can directly download the game by clicking on the following link provided by the game creators: Download Pokemon Prism 

How to Play 

Running a Pokemon rom hack can be tricky. If you’re confused about some steps, read our short guide on how to patch gba and nds roms

As for this particular game, follow the steps below:

  • Download the ZIP file
  • Download an English Pokemon Crystal ROM (Both 1.0 and 1.1 versions will work)
  • Download a Game Boy Color Emulator (BGB, SameBoy, or Emulicius)
  • Extract the ZIP file
  • Click the following link: Open Patcher 
  • Upload the “pokeprism.bsp” to the Patch File section
  • Upload the Pokemon Crystal ROM to the Input File section
  • Click “Begin patching”
  • Select “Release ROM”
  • Click “Get file” 
  • Save the game in a folder
  • Start your emulator and load the ROM


A slight downside to amazing fan games like Pokemon Prism is, unironically, the changes. It can be difficult to know where your favorite Pokemon is hiding or how to proceed further when stuck. 

Luckily for us, this game’s developers have gone above and beyond by documenting each and every change. Here’s the Google Sheet made by the game creators themselves: Pokemon Prism Documentation


Want to make sure you don’t miss out on anything? Or maybe you’re stuck and don’t know how to proceed? Don’t worry. Click on the following Google Docs link to view the full guide: Pokemon Prism Walkthrough


These are some GameShark cheat codes that I have searched for around the internet and personally tested. 

Note: Always save your progress before using any codes since they might damage your game.

Walk Through Walls 









Infinite Money







Infinite EXP







Note: Use the above code with caution. Some players have reported that their Pokemon won’t stop leveling up even after they turn the code off.  


Is Pokemon Prism complete?

You can play the game till the end and obtain all 20 badges. However, Lance’s quest has no resolution, the Crystal Egg doesn’t serve any purpose, and a few areas with roadblocks may or may not get expanded in future versions. Also, Mewtwo is unavailable in the current version.

Who’s the starter Pokemon in Pokemon Prism?

Larvitar is the starter Pokemon in this game. 

Can I play Pokemon Prism on VBA or VBA-m?

You can, but the game creators recommend against it as the emulator doesn’t run Pokemon Prism very well. 

Which emulator should I use to run Pokemon Prism?

The game creators recommend BGB or Gambatte. You can also use mGBA. 

What do Gold Tokens do in Pokemon Prism?

Gold Tokens are hidden items found throughout the game. You can exchange them for special items.

What does Ore do in Pokemon Prism?

Ore in this game doesn’t seem to serve any special function. Just smelt and sell it for now. 

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