It's just confusing to have so many buttons doing so many things, and so many enemies that require so many different ways of dispatching. It's certainly great to have options and variety, but there's an information overload that can drown even the most focused of brains. This is an issue that doesn't just affect combat -- with so many gadgets, it's tough to keep track of which items perform which tasks, and when they're needed against certain obstacles. I was stuck at one point because I forgot that, among everything else he can do, Batman can slide to get under low barriers. It totally slipped my mind among all the things I needed to remember. This ties into the earlier criticism of Batman's grappling hook -- there are so many things to latch onto that the game itself gets confused.