Does anyone know if Need for Speed: Shift, and Cloudy with a chance of Meatballs would work on 5.00 m33-6 or 5.50 GEN-B??

Or would those two games require the 5.55 firmware just like G.I. Joe: Rise of Cobra, Dirt 2, or Motorstorm Arctic Edge???

I saw a comment saying Need for Speed: Shift works but just wanna make sure, after all it's just a comment from someone unknown..

By the way both of them are out and available for download and they're both U.S versions..