Biff

Biff is a recurring character and native alter user.

Synopsis
Biff is technically the first antagonist in the show. Later on, during a strike on HOLY, he gets captured and his abilities are refined immensely. He's also completely brainwashed in the process, to the point that his vocabulary becomes limited to "hammer" and all he can do is take orders, although he is sometimes heard making other noises or words, solely as insults. It is revealed that after being brainwashed, he is completely void of thought, as seen when Asuka Tachibana tried to control his mind. Even the Eternity Extra Shot had no effect on him. He eventually breaks free just before dying, recollecting his name as he falls to his death.

Alter
NR Hammer: Biff alter ability creates a large mecha that has a gigantic hammer for a right arm. Its only known ability at first is to violently strike at its enemies and carry Biff in his extra hand. After it gets refined, the hammer becomes somewhat different, the color scheme is switched to more a black and red look, and the hammer and NR Hammer can be propelled by some sort of jet device.