A Best Buy advertisement for Batman: Arkham City seemingly confirming Robin's appearance in the game. Not only that, boy wonder's suggested to be a "playable character" in two challenge maps when pre-ordering from the retailer.

The information was first spotted via a blurry (and not very credible) shot of the proposed advertisement, this was then enforced when Best Buy updated their site reflecting the offer. This has now been removed but is still available through Google Cache.