Fans of downloadable convenience might like to know that Super Street Fighter 4 and Need for Speed Shift are now available via Xbox Live Games on Demand. SSF4 is available for $40, while Shift is a slightly more palatable $30. Oh, Operation Darkness -- the WWII strategy game with vampires and zombies -- is also available today for $40. You know, in case you were waiting for it.

This article was originally published on Joystiq.