Was looking forward to this and left pretty disappointed.
The concept idea is neat, the execution a narrative mess. It's a string of stupid mistakes made by Batman in a plot that's leaking from inconsistencies and ludicrous ideas.
Sure, it makes no sense to ultimately question where Penguin found all those penguins in feudal Japan or how all those Arkham villains individually – despite Grodd's mind control – managed to build those giant robotic castles.
But when this turns into…