The only other preorder bonus to be announced so far is one through Walmart for a “prototype Batmobile.” We don’t yet know exactly what it entails, but this version of the Batmobile is said to include “exclusive gameplay features.”

We’ll keep this story updated with any additional bonuses announced between now and Arkham Knight’s launch.

Combined with the PlayStation-exclusive Scarecrow nightmare missions announced at E3, it’s going to be difficult to get your hands on every bit of Arkham Knight content that’s out there. At least in the case of the preorder bonus DLC, though, it’s possible it could be sold as standard DLC at some point following Arkham Knight’s launch.

Originally scheduled for release this fall, Arkham Knight was delayed last month until sometime in 2015. The version of Gotham City available for players to explore is “five times larger than the game world of Arkham City” according to its developer. For more on Arkham Knight–which is coming only to Xbox One, PlayStation 4, and PC–check out our latest preview here.

Which DLC pack are you most interested in trying? Will it convince you to preorder? Let us know in the comments.