The only way to beat the giant Beta is via direct attack to the brain, forcing Ogre into a very perilous situation. Auctioneer risks his life to locate the brain, and Ogre uses Number 11 to take it out and defeat Beta.

He reunites with the Squad and celebrates, but his joy would be short-lived.
I'm going to take all three EX-ARMs you 
put up for auction.
سآخذ كلّ الـ "إكس-آرم" الثلاثة
التي عرضتها في المزاد
Ich werd mir alle drei Ex-Arms krallen, die zur Auktion geboten waren.
Me quedaré con los tres EX-ARM
que pusiste en subasta.
Me quedaré con los tres EX-ARM
que pusiste en subasta.
Les trois EX-ARM
que tu as présentées aux enchères,
Ti porterò via tutte e tre le Ex-Arm 
che hai messo all'asta!
Vou levar todos os três EX-ARMs
que você colocou em leilão.
А теперь я заберу все три Экс-Арм,
которые ты выставил на торги.