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.
To take him out, we must find out for sure 
where in this massive body his brain is.
للقضاء عليه، علينا اكتشاف أين يخفي
دماغه في هذا الجسد الهائل
Um ihn auszuschalten,
müssen wir in Erfahrung bringen,
Para poder vencerlo,
Para poder vencerlo,
Pour l’achever,
Per abbattere quel tipo
Para eliminá-lo,
Единственный способ убить его —