Do anda guys know this Anime where they have to fight viruses?

* The mc gets kidnapped
* There's a guy that got out of the prison because he's a valuable fighter with a high mentality
* They have to fight with their imagination- like whatever they think of becomes real. Weaponry and armor, but it is limited because of how high their (idk what its called) is.
* The mc is weak minded but he has the highest ( idk what its called )
* There was this one scene in the Anime where there were doctors arguing about leaving a patient's life to the hand of a machine, and the patient died because there was a virus in the machine's system. - This virus is what they have to fight.
* lots of technology