Luke Plunkett: "The rather wonderful Batman: Arkham City will, thanks to its wealth of extra-curricular content, still be spinning in many people's disc drives this week. No matter. Publishers Warner Bros. think now is the time to drop some fresh downloadable content for the singleplayer-only game.
So this week has seen the release of the Nightwing pack, which for $7 adds a new Challenge Room character, two new Challenge Room...challenges and a bonus skin. Is it worth the money? Let's ask some guys who work for Kotaku what they think."