Pokemon Tag Team Trials (GBA) Download

Download Pre-Patched Pokemon Tag Team Trials GBA ROM Hack

Creator: Viperio
Version: v2.0.3
Hack of: Emerald
Updated: October 7, 2026
Language: English
Status: Completed

Pokemon Tag Team Trials is a GBA ROM Hack by Viperio based on Pokemon Emerald in English. And it is now available to download. It was last updated on October 7, 2026.

Table of Contents

Download Pre-Patched Pokemon Tag Team Trials GBA ROM Hack

About

Mechanics

How to play multiplayer mode

Also, be sure to check out Pokemon Celia’s Stupid

About

This ROM hack was created as a competition entry for TARC 3!

Pokemon Tag Team Trials is a puzzle-focused ROM hack that challenges you to work together using two characters: an Aqua Grunt and a Magma Grunt.

In Single-Player Mode, you can switch between both characters and make use of their individual abilities to solve puzzles. In Multiplayer Mode, connect with another player and each take control of one grunt. You’ll need to combine both characters’ tools and abilities to overcome obstacles and complete your adventure!

Mechanics

Most luck-based aspects have been removed to focus more on the puzzle aspect (catching is guaranteed, moves always hit but never crit, etc.)
If you’re figuratively stuck, talk to the other player to get a hint about the current puzzle.
If you’re literally stuck, try resetting the room by leaving with either player, or by selecting “DIG” in the start menu if you are in the final room.
If player 2 is visually stuck in multiplayer mode, open a menu (such as the party menu) to update player 2

How to play multiplayer mode

Copy the patched ROM so you have a P1 game and a P2 game.
Launch mGBA (version 0.10.5 or later), start P1 game.
Under mGBA Menu, File -> New Multiplayer Window, launch P2 game.
Under Tools -> Settings, set up the controls for both games. Use the keyboard for P1 and a controller for P2. Unbind the controller controls for P1.
Start a new multiplayer game for each player and select different teams. The game will automatically try to connect upon entering the first room, or you can connect in the start menu.
OPTIONAL: You can use a remote control tool such as Parsec or Chrome Remote Desktop to let someone from another device control P1 with their keyboard.

Bugs

You can report any discovered bugs in the linked discord server.

Known Bugs

Confirming a nickname upon catching a Pokemon or selecting “NO” when prompted to nickname a Pokemon may crash/reset the game. This is an inconsistent bug that we haven’t managed to reproduce on official hardware. Not using speedup seems to minimize the chance of this happening. Starting in v1.1.0, the game auto saves before battling a catchable Pokemon to minimize the consequences. It’s advised to save before battling Pokemon if you’re not using v1.1.0+. This bug might be fixed in v2.0.3, please report any instances of a crash when using v2.0.3+.