Union Room
The Union Room allows players the interact directly with other players. Other trainers appear in the Union Room as representations of nearby players who have also entered the room. In Generation III (more specifically, Pokémon FireRed, LeafGreen and Emerald) the Union Room requires the GBA Wireless Adapter to be attached to the Game Boy Advance to enter, and in Generation IV it can be entered using the DS's native Wi-Fi ad hoc support.
Inside the Union Room, trainers may:
- Chat in a group of 2-5 trainers.
- View the Trainer card of another trainer.
- Enter two Pokémon up to level 30 for one-on-one battle.
- Register a Pokémon for trade, or trade for a registered Pokémon (Generation III)
- Trade Pokémon (Generation IV)
- Mix Records (Generation IV)
- Draw (Generation IV)
- Spin Trade (Pokémon Platinum)
A trainer must have at least two Pokémon to enter the Union Room. Pokémon holding an e-Card berry may not enter the room.
Despite the high potential of the Union Room and the variety of activities there, they are often empty, except if a certain time is scheduled by a group of friends or relatives. This is because once in a Union Room, only specific Union Room actions can be carried out.
