Making a Metroid-style third-person adventure game starring Batman is such a genius concept that I can’t believe it’s taken this long for somebody to do it. Batman fits the mechanics perfectly: not just focused on punching, reliant on gadgets, lots of swooping and jumping. All that has to be done to adapt him for a game is to construct an elaborate and varied playground for him to run around in – in this case, Arkham Asylum – while constantly drip-feeding new gadgets that open up new areas and new secrets, and in this the developers have succeeded spectacularly. But they’ve also achieved so much more.