Good question.

"What is a Æther cannÞn?" You ask. "That is a good question." Kratos replied. "The Æther cannÞn is a weapon that we developed in the event of a revolt by hackers, such as the Devils. It's shot will completely destroy any abnormal code, and at your option, eject the user. This, along with your special Agent abilities such as shape-shifting and Alchemy, which means you can use all magic, and other skills, you will stand a chance."