The moment he thought through the process, Schiller truly felt the difficulty of this dungeon. It demanded far too much of a Player's abilities. Strength alone was not enough, nor was intelligence alone. One had to be both cultured and martial, possess the endurance and willpower for a long campaign, and even then, one still needed enough luck.
There was no need to mention the basic requirement of strength. At the very least, one had to find a way into the cathedral. During the search, one could not miss any crucial information either. If one did not know Batman's body had already been contaminated by Joker genes, then even if one later found the real Batman's brain and put it back, the one saved would only be Joker.
Another key difficulty was figuring out which brain belonged to Joker and which belonged to Batman. This was actually the hardest part, because not everyone had hallucination vision like Schiller.
Most people would struggle to think of swapping brains. Even if they did, who could ensure that Joker's brain was inside Batman's body, while Batman's brain was the one in the tank? Even if Death Angel had not died, he probably would not have told the Players. They could only judge for themselves.
There were not many people capable of making it here in the first place, and even fewer capable of figuring it out. Based on the information provided by Batman's brain, it seemed that only Arkham Batman had succeeded.
But even so, he had still been forced to place Batman's brain into the contaminated body. That was understandable, though. Batman did not kill. Perhaps during the earlier process, he had not dealt lethal blows to any of Death Angel, Tony, or Lady Shiva. As a result, after finding Batman's brain,