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.
You're going to tell everyone 
where you're hiding.
ستخبر الجميع بأين تختبئ
Nos dirás exactamente dónde estás.
Nos dirás exactamente dónde estás.
C’est toi-même
qui vas nous apprendre où tu es caché.
Você mesmo vai dizer
onde está escondido.
Ты покажешь всем, где прячешь свой мозг.