The Battlefield Fortress
From Mariopedia, a wiki on Mario, Yoshi, Wario, Donkey Kong, Super Smash Bros., and more!
The Battlefield Fortress is an area in the Subspace Emissary mode of Super Smash Bros. Brawl. It is the stage in which Marth sees a subspace explosion, and decides to help out. Marth then runs through the outside area of the Battlefield Fortress. When at the end, he meets and duels Meta Knight. When Primids appear around them though, they team up. Soon enough they also team up with Ike.