The Xbox One's backwards compatibility with Xbox 360 games has largely worked as promised, but there's now one glaring exception. Microsoft has confirmed reports that Halo: Reach (aka one of the 360's biggest titles) runs much slower than you'd expect. While talk of it being "unplayable" is extreme, Bungie's shooter fell from a largely steady 30 frames per second on the original hardware to the mid-teens -- enough to throw you off during intense action scenes. Others report audio glitches, too.
Source: Reddit, Kotaku
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