The latest Xbox 360 game that can be played on the Xbox One is Shank 2. The 2D side-scrolling action game has been added to the list of Xbox One backwards compatibility titles.
The new game on the list was revealed via the Major Nelson Twitter page. Shank 2 was originally released in 2012 and is a sequel to developer Klei Entertainment's Shank that came out in 2010. Here's a brief description:
With those closest to him under attack, Shank is once again forced on the offensive. Now he must put his trusty arsenal of handguns, shotguns, automatic weapons, chainsaws, machetes, grenades, plus all-new weaponry and moves to use in order to protect those close to him. The original game set a new standard for its visual style and Shank 2 raises the bar. Shank 2 expands on the original game's amazing combat system to redefine the 2D side-scrolling brawler.
Shank 2 is currently available in the Xbox Store for $9.99