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 the one whose
existence will be erased.
أنت الذي سيُمحى وجوده
Du bist derjenige, dessen Existenz
ausgelöscht werden wird.
El que volverá a la nada serás tú.
Eres tú el que volverá a la nada.
C’est ton existence
qui va retourner au néant.
Sarà la tua esistenza a finire in nulla.
É a sua existência que será apagada.
Это твоё естество вот-вот исчезнет.