Absolutely true. There are so many mechanics, so many riddles, so many sidequests. Every predator room has so many secret routes, the combat has so many options, the movement can flow so well, but at the same time it's fairly active to do it properly. Part of this is the fact that you actually start with about 5 gadgets left over from AA, so they don't give you a proper explanation of their new uses (things like batclawing long-distance Riddler trophies). Come to think of it, the entire Riddler challenge seems poorly explained. I haven't had the opportunity yet to scan a riddle/question mark yet. I've just been collecting trophies. I haven't directly been in contact with the riddler yet at all around 5 hours in.