Dead Rising is being ported to the Nintendo Wii, only two years after the original title. In Japan, they’ve changed the name to Dead Rising: Zombies Sacrifice, perhaps to make it sound like a different game.
The game, in fact, is said to have some difference from the original title. These changes are ‘upgrades’ from the original title based on feedback from consumers. Rather than simply reissuing the same game, “in addition to a revised story structure, the Wii version of Dead Rising will feature new enemies and items, as well as a behind-the-shoulder camera system modeled after Resident Evil 4” (1up)
Fixing the camera and adding some new monsters is enough to give the game the subtitle Zombies Sacrifice. They’ve included full waggle support for the controller allowing you to kill zombies with the greatest of ease, but… it’s still killing zombies…
Does anyone care?

It makes sense for Sony to try to push themselves away from being classified with the Wii console because it makes them look bad. We’re all equal gamers here, there is no need to break into more sub-categories when only three consoles vying for top spot. Many folks (including us) criticize the slow adoption rate of Wii games, yet they steal top software sales spots as well.