查看“超大型巨人”的源代码

=== [[Clash of the Titans arc]] ===
[[File:Reiner and Bertolt transformation.png|thumb|left|200px|The Colossus and Armored Titans transform]]
Due to the discovery of Eren's possession of the [[進擊的巨人 (巨人)|進擊的巨人]], the [[Warrior Unit|Warriors]] postpone their plan to destroy the Walls and instead focus on capturing Eren, whom they believe possesses the [[始祖巨人]] as well. Bertolt does not make use of the Colossus Titan until a month after the [[battle of Trost District]], when [[Reiner Braun|Reiner]] in a moment of exhaustion and desperation reveals himself to be the [[盔甲巨人]] and exposes Bertolt as the Colossus Titan. With nowhere to run, the two transform into their Titan forms and battle against the [[[調查軍團]]. 
[[File:Bertolt steam release.jpg|thumb|200px|right|The Colossus Titan's steam ability]]
As Reiner's Armored Titan battles Eren's Attack Titan, Bertolt fights against the soldiers of the Survey Corps with a partially transformed Colossus Titan. When the soldiers are ready to land a killing blow, Bertolt once more uses his steam emission control to keep them all at a distance, and their vertical maneuvering equipment is unable to reach him in the continuous gusts of wind.{{Ref|43|p = 1-24}} Bertolt's Colossus remains in this state of emission for a short time until Reiner faces imminent defeat in his struggle against Eren and calls for help. Hearing Reiner's signal, Bertolt falls to the ground below{{Ref|44|p = 14-45}} and evaporates his Titan in an explosive gust of steam.{{Ref|45|p = 1-7}} In the chaos, Reiner steals Eren from his Titan, and Bertolt joins him after leaving his Colossus.{{Ref|45|p = 21-25}}