"I can think of plenty of uses for an invulnerable programme," says Ariadne, "but making one goes outside what we have generally learned are the basic design parameters of AIs within the Matrix. It is also contrary to the basic mechanics of the Matrix that even Agents are subject to. I've not seen programmes made like that before.
"Ok, next thing..."
She brings up the point at which the Doctor arrives, is shot at by the SWAT, and then freezes the SWAT.
"This one is... odd. When he dodges those bullets, his code displays the exact same algorithms as an Agent doing the same thing. But there the similarity ends; this is a distinctive programme within the Matrix. Not body hopping like Agents do. As for what he did to those SWAT... well."
She replays the code from that moment. You watch the trickling green code on the screens, as the Doctor and th SWAT guy interact. At that very moment, all the code for the SWAT simply sticks on screen- no longer trickling, no longer altering, just stuck there. And as time goes by, new code from other things comes running down from above, and replaces the frozen code.
"It's like... the SWAT just stopped interacting with the Matrix at all. Eventually the remnant of his shell was completely overwritten."
"Now we come to the REALLY odd bit," says Ariadne. "That Hunter."
She brings up a screen of Matrix code, more stuff recorded from the fight.
But there is something wrong with the screen. One of the lines on it doesn;t contain proper code characters. Onstead, it contains distorted, broken and twisted code, broken up, swapped around, totally messed up. Often just an unreasable corrupted blur.
"Something stopping you from reading him?" asks Marduk.
"No," says Ariadne. "That IS him."
"Change? It didn't start being normal, if that's what you mean. But... I can't READ this. It is gibberish. I can't tell you if it is altering or not. What I can tell you is, he... IT didn't make much effort to avoid harm."
"It made plentry of effort to INFLICT harm," says Marduk.
"Hey, we kicked its ass!" points out Dallas.
"About five on one and I don't think we really caused it any long term trouble," says Ariadne. "But its recognition of its status... and the way it shot the key out of the Exile's hand because it knew it couldn't hurt it... the way it skirted the battlefield, this is cleary an intelligent being, not a mindless drone. I cannot see any sign of an AI mAtrix in that mockery of code but the way it acts is the only thing we have to go on. But ideas? Just one."