Games & Tools on GB-Link Docs

Pokémon Gen 3

Wed, 08 Jul 2026 00:00:00 +0000

Trade Pokémon, battle friends, and mix records with original, unmodified Game Boy Advance hardware.

Web client: celio.gblink.io

They Said Online Gen 3 Pokémon Was Impossible… — GB-Link showcase on YouTube.

Supported games

Pokémon Ruby
Pokémon Sapphire
Pokémon Emerald
Pokémon FireRed
Pokémon LeafGreen

What you can do

Trading — Complete your Pokédex with trade-only evolutions
Battling — Fight other trainers online
Record mixing — Share in-game records with other players

Requirements

Game Boy Advance (or compatible FPGA console)
Pokémon Gen 3 cartridge
GB-Link adapter with GBA link cable (master connector)
Chrome or Firefox on desktop, or Chrome on Android

How to play

Insert your Pokémon cartridge and power on the GBA.
Open celio.gblink.io and connect your adapter.
Follow the on-screen prompts to enter the link room in-game.

Connect the link cable to the adapter before selecting GBA mode. The firmware detects cable type at mode selection.

Pokémon Trading (Gen 1–2)

Wed, 08 Jul 2026 00:00:00 +0000

Complete your Pokédex by trading Pokémon from Generations 1 and 2 online — no emulators required.

Web client: pokemon.gblink.io

Tetris Online

Wed, 08 Jul 2026 00:00:00 +0000

Stack blocks against players around the world using your original Game Boy and Tetris cartridge.

Web client: tetris.gblink.io

Game Boy Tetris online — GB-Link showcase on YouTube.

Supported games

Tetris

What you can do

1v1 battles — Head-to-head matches
Battle royale — Create a lobby and play with 2+ players

Requirements

Game Boy or Game Boy Color
Tetris cartridge
GB-Link adapter with link cable
Chrome or Firefox

How to play

Insert Tetris and power on your console.
Open tetris.gblink.io and connect your adapter.
Enter the multiplayer menu in-game and follow the web prompts.

History

Tetris online was one of the earliest GB-Link implementations, originally open-sourced by Stacksmashing. It demonstrated that classic link-cable games could work over the internet.

Advance Wars 1 & 2

Wed, 08 Jul 2026 00:00:00 +0000

Command your armies against rival players online in two classic turn-based strategy games.

Web client: aw.gblink.io

Supported games

Advance Wars
Advance Wars 2: Black Hole Rising

What you can do

Online matches — Battle other commanders in real time
Custom maps — Share and play custom maps with the community

Requirements

Game Boy Advance
Advance Wars or Advance Wars 2 cartridge
GB-Link adapter with GBA link cable (master connector)
Chrome or Firefox

How to play

Insert your Advance Wars cartridge and power on the GBA.
Open aw.gblink.io and connect your adapter.
Navigate to the link battle menu in-game and follow the web client’s prompts.

Tips

Advance Wars is turn-based, making it well suited for online play over GB-Link’s relay architecture.
Connect the cable before selecting GBA mode in the launcher.

Dr. Mario

Wed, 08 Jul 2026 00:00:00 +0000

Match colored capsules against an online opponent in the classic Game Boy puzzle game.

Web client: drmario.gblink.io

Dr. Mario online — GB-Link showcase on YouTube.

Supported games

Dr. Mario

What you can do

1v1 versus — Match colored capsules against an online opponent

Requirements

Game Boy or Game Boy Color
Dr. Mario cartridge
GB-Link adapter with link cable
Chrome or Firefox

How to play

Insert Dr. Mario and power on your console.
Open drmario.gblink.io and connect your adapter.
Enter versus mode in-game and follow the web prompts.

Tips

Both players need a Dr. Mario cartridge for versus mode.
Agree on difficulty settings with your opponent before starting.

Yoshi

Wed, 08 Jul 2026 00:00:00 +0000

Compete in versus mode online, stacking falling eggs in the classic Game Boy puzzle game.

Web client: yoshi.gblink.io

Yoshi versus mode online — GB-Link showcase on YouTube.

Supported games

Yoshi

What you can do

1v1 versus — Compete in versus mode, stacking falling eggs

Requirements

Game Boy or Game Boy Color
Yoshi cartridge
GB-Link adapter with link cable
Chrome or Firefox

How to play

Insert Yoshi and power on your console.
Open yoshi.gblink.io and connect your adapter.
Enter versus/link mode in-game and follow the web prompts.

Tips

Both players need a Yoshi cartridge for versus mode.

Pokémon Event Distribution

Wed, 08 Jul 2026 00:00:00 +0000

Receive rare historical event Pokémon that were originally distributed at real-world events — now available through your browser.

Web client: distribution.gblink.io

Game Boy Printer

Wed, 08 Jul 2026 00:00:00 +0000

Save Game Boy Camera photos and other printer output as image files on your computer — no physical Game Boy Printer needed.

GBA Multiboot

Wed, 08 Jul 2026 00:00:00 +0000

Load homebrew games and development tools onto your Game Boy Advance without a flash cart.

Web client: multiboot.gblink.io

Supported games

Multiboot homebrew (no cartridge required)

What you can do

Send multiboot homebrew programs to your GBA over the link cable
Test homebrew without purchasing a flash cart
Load development builds quickly during development

Requirements

Game Boy Advance (no cartridge needed for multiboot)
GB-Link adapter with GBA link cable (master connector)
Chrome or Firefox

How to use

Power on your GBA without a cartridge inserted (or with multiboot-compatible setup).
Open multiboot.gblink.io and connect your adapter.
Choose a homebrew file and follow the transfer prompts.

Tips

Multiboot transfers a small program into GBA RAM — the program runs until power off.
Not all homebrew is multiboot-compatible; check the homebrew’s documentation.
This is a great tool for homebrew developers testing builds quickly.

GB Cart Doctor

Wed, 08 Jul 2026 00:00:00 +0000

Back up and restore your Game Boy and Game Boy Color cartridges before save batteries die — dump ROMs and save files, or write saves back.