Battleship Halberd Bridge

From the Super Mario Wiki

Battleship Halberd Bridge is a Subspace Emissary boss stage in the game, Super Smash Bros. Brawl. It is played by Falco, Fox, Lucario, Peach, Sheik, and Snake, and the boss is Duon. After the events at the end of the stage, Battleship Halberd Exterior, Snake, Lucario, and Meta Knight spot Mr. Game & Watches controlling the Halberd, whereas Snake knocks them all out and throws them out the window. They land a few feet away from where Fox, Sheik, and Peach stand, and they transform into Shadow Bugs, and then Duon. Snake and Lucario jump from the window and land in front of Duon, while an Arwing flys over and Falco ejects from it. Duon roars, and four fighters battle. When Duon is defeated, the Shadow Bugs eject from him, and Mr. Game & Watches trophy appears, lying to its back. Fox brings his Blaster out to shoot if it comes harm, but Peach walks over and touches the trophy, making Mr. Game & Watch come to life. Its presumed that Peach tells Mr. Game & Watch about what happened, and gives him her umbrella. After this, Meta Knight regains control of the Halberd, and steers it out of the darkred clouds covering it. After the events in the Subspace Bomb Factory, Meta Knight and the rest return to (what is supposedly) The Canyon, where the Falcon Flyer also lands, in-front of the rest of the heroes.