WBIE and DC Entertainment celebrate tomorrow's launch of Batman Arkham Knight with the release of the official launch trailer for the superhero sequel, which also serves as a music video for Mercy, a recently released track from Muse. Here's the description of the game that accompanied the clip: "Batman: Arkham Knight brings the award-winning Batman: Arkham trilogy from Rocksteady Studios to its epic conclusion. Developed exclusively for the new generation of consoles and PCs, Batman: Arkham Knight introduces Rocksteady's uniquely designed version of the Batmobile. The highly anticipated addition of this legendary vehicle, combined with the acclaimed gameplay of the Batman: Arkham series, offers gamers the ultimate and complete Batman experience as they tear through the streets and soar across the skyline of the entirety of Gotham City. In this explosive finale, Batman faces the ultimate threat against the city that he is sworn to protect, as Scarecrow returns to unite the super criminals of Gotham City and destroy the Batman forever."