"No, nanites need something to work on to heal it. However, given the nature of the school, Doc did take this into account. Since outside interferance would disrupt the simulation, your reformation systems are tuned out. However, Doc did research and applied his own custom reformation system. The moment you step inside the system records your information down to the very last detail. Then, if a prey is to be digested they will 'respawn' kinda like a video game. For 'Multiplayer matches' if someone is revived by the nanites or reformed, they would be sent to a 'Out' room  with a screen to observe the rest of the match so they can not interfere. Speaking of Multiplayer Matches, no way to get use to a system than a old fashioned brawl. What do you say? It can be at this simulation or I can set up a differant arena. Your choice," Cybrix explains and asks basically anybody there.