Do all games for the Xbox 360 support high definition?
A. Yes, all games that are genuine Xbox 360 titles must support at least 720p. Every indication from Microsoft is that every game that is ever released for the platform must support at least 720p. Please note that some games render internally to a smaller framebuffer — most notoriously Project Gotham Racing 3 which renders to a 1024 by 600 framebuffer — so take this with a grain of salt.
