The Ruined Hall

The Ruined Hall is a boss stage in Adventure Mode: The Subspace Emissary in Super Smash Bros. Brawl. It takes place in a deep, empty underground area, and is only playable by the Pokémon Trainer and Lucas.

The only objective of The Ruined Hall defeat the boss, Galleom, who was first fought by Marth, Meta Knight and Ike above ground previously, right near the underground Ruined Hall. However, Galleom was not completely destroyed, but instead jumped; because of its immense weight, the ground crumbled to pieces, and Galleom fell through into the Hall as Lucas and the Trainer entered, forcing them to finish the boss themselves.

After Lucas and the Trainer Galleom defeat it, Galleom reveals that a Subspace Bomb is attached to it, and then grabs Lucas and the Pokémon Trainer in order to detonate the bomb and take them with it. Luckily, they are saved by Marth, Ike, and Meta Knight. After Galleom is destroyed, the Pokémon Trainer and Lucas join the swordsmen.