Banba agrees to work for Saruhiko labs.  He's invited to their lowest level, where the cause of all the incidents is revealed. Then it gets loose...
This is the ultimate creature we've created.
هذا أعظم وحش قد صنعناه
Dies ist unsere ultimative Kreation.
Comment trouves-tu la créature 
que nous avons mise au monde ?
Essa é a última criatura que criamos.