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.
but what makes you think I'd put it 
in such an obvious place?
لكن ما الذي يجعلك تعتقد أنّي
وضعته في مكانٍ واضح كهذا؟
ma non può essere 
in un posto tanto riconoscibile, no?!
mas é claro que não está
em um lugar tão óbvio!
А с чего ты взял, что я размещу
его в столь очевидном месте?