Batman's brilliance doesn't come from his gadgets, so taking them away is inconvenient, but not a deal breaker.
Also, the fans have been over this enough haven't they? If Batman has adequate preparation time, he can and will defeat anyone or anything put in his way.
Read tvtropes Crazy Prepared bit on Batman, it recounts a story told where the entire world is under the control of Gorilla Grodd except for Batman. Batman's arm is robotic and Superman is gone in space because the atmosphere has Kryptonite in it. He wins and it turns out the entire thing was a simulation just in case that situation would ever happen.
Batman also has been established to know about Sailer Moon, just in case, so chances are he would have already roleplayed the situation you talk about when the Assassin's Creed games came out.
Batman always wins.
Also, the fans have been over this enough haven't they? If Batman has adequate preparation time, he can and will defeat anyone or anything put in his way.
Read tvtropes Crazy Prepared bit on Batman, it recounts a story told where the entire world is under the control of Gorilla Grodd except for Batman. Batman's arm is robotic and Superman is gone in space because the atmosphere has Kryptonite in it. He wins and it turns out the entire thing was a simulation just in case that situation would ever happen.
Batman also has been established to know about Sailer Moon, just in case, so chances are he would have already roleplayed the situation you talk about when the Assassin's Creed games came out.
Batman always wins.