Ancient Minister

The Ancient Minister is an antagonist of The Subspace Emissary in Super Smash Bros. Brawl. He is the commander of the Subspace Army and the R.O.B. Squad, and assists Tabuu in his plan to pull the World of Trophies into Subspace using Subspace Bombs. The Ancient Minister is capable of flight, and he can fire lasers from the bottom part of his body.

Background
Before the events of the game, the Ancient Minister was the Master Robot. . He and other R.O.B.s lived on the floating Isle of Ancients to watch over the World of Trophies. Eventually, Tabuu invades the world and attacks the Isle of Ancients, deactivating many R.O.B.s and eventually taking the robots hostage. Master Robot was forced to join Tabuu's side to prevent deaths of more of his robot brethren. Around this time he began to hide under his ceremonial robes of mourning and assume the name "Ancient Minister". The Isle of Ancients is converted into The Subspace Bomb Factory and the Ancient Minister becomes the commander of the Subspace Army. As the commander of the army, he lead the invasion of the World of Trophies on behalf of Tabuu, while a specially trained group of R.O.B.s, the R.O.B. Squad, served as the Ancient Minister's personal bodyguards.

Super Smash Bros. Brawl
In Super Smash Bros. Brawl, the Ancient Minister he first appeared in the Subspace Emissary after Mario and Kirby's match at the Midair Stadium, where he detonated a Subspace Bomb, sending the stadium to Subspace. He escaped, only to be later chased by Mario and Pit in The Plains, who had little success catching him. He then detonated another Subspace Bomb at The Battlefield Fortress, attracting the attention of Marth, Meta Knight, and Ike. Regardless of the group's efforts, he manages to escape their grasp, however, he is soon discovered by Mario and Pit once again, along with Link and Yoshi. Again, the Ancient Minister escapes, but not before detonating yet another Subspace Bomb, sending Castle Dedede into Subspace.

The Ancient Minister is not seen again until Samus Aran and Pikachu corner him at the Subspace Bomb Factory. Samus and Pikachu are ready to fight, but the Ancient Minister refuses, growing depressed at the number of R.O.B.s sacrificed to activate the Subspace Bombs, confusing them. Soon after, Donkey Kong, Diddy Kong, Captain Falcon, and Captain Olimar arrive, also battle-ready, but the Ancient Minister still refuses. A holographic Ganondorf appears, quickly realizing that he has betrayed him. Using a remote-controlled button, he is able to control the R.O.B.s, ordering them to attack the Ancient Minister and activate every Subspace Bomb in the factory.

When the R.O.B. Squad shoots the Ancient Minister, his robes burn off, revealing to everyone that he was a R.O.B. all along. The game introduces him as R.O.B., which he is known as from this point on. He helps the other heroes defeat Subspace Army members and joins them in their fight against Tabuu.