Metal Gear Rising: Revengeance on the PC, Original resolution was 5040×1050 aspect ratio of (48:10). If you are running a resolution with a width higher than 1920 (30” monitor or multi monitor) set quality to original and view in fullscreen. Video was recorded with NVIDIA Surround, however the information will apply to AMD Eyefinity unless otherwise stated.
The game doesn’t really have native multi-monitor support, by default it letterboxes to a 16:9 aspect ratio. However HaYDeN from the Widescreen Gaming Forum has battled though this difficult to fix game and has given it very respectable support. You can download Flawless Widescreen, which contains this fix, from here: http://www.wsgf.org/forums/viewtopic.php?f=63&t=24098
The game can be bought from Steam: http://store.steampowered.com/app/235460/Also read: