The Ruined Hall is a stage in the Subspace Emissary of Super Smash Bros. Brawl. It is a straightforward stage containing only a boss battle against Galleom for the second and final time before entering the Great Maze. The player plays as either Lucas or the Pokémon Trainer. After the battle, Galleom's head reveals a Subspace Bomb, which is set to detonate over the ruins in 15 seconds. The Pokémon Trainer faints, but Lucas uses PK Thunder on Galleom's arm, blowing it off and sending Lucas and the Pokémon Trainer back down to the ground. After this, Lucas sees no other option and braces for impact, grabbing onto the Pokémon Trainer. Fortunately, Lucas and the Pokémon Trainer are saved by the near-by Meta Knight, who had earlier fought Galleom with Ike and Marth. Wario's trophy, defeated earlier, is sucked into Subspace, along with the ruins.
 Playable Characters
- Since the level purely consists of a Galleom boss fight, Boss Battle Song 1 plays throughout the level.
- In the ending cutscene, a small part of the Menu 1 music plays.