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.
Not sure what Number 16 does, 
but I guess it'll let you fire off another shot now.
لا أدري ما قدرة رقم 16، لكن لعلّه سيمكّنك
من إطلاق طلقة أخرى الآن
Keinen Schimmer, was seine Fähigkeit ist,
No sé qué poder tiene,
No sé qué poder tiene,
J’ignore la nature de son pouvoir,
Non so quali capacità abbia,
Não sei bem o que o Número 16 faz,
Не знаю, как работает номер 16,