It looks like you're diving back into for the original Xbox! This was a pivotal entry in the series that introduced several features that became franchise staples. Key Highlights of FIFA 06
If you are looking to pick up a physical copy, collectors often look for the version, which includes the original manual and case. Since it was released in late 2005, it was one of the final FIFA games to really push the hardware limits of the original Xbox before the transition to the Xbox 360. FIFA Soccer 06 [Xbox Classic]
Depending on where you bought the game, you'll see Ronaldinho and Wayne Rooney gracing the cover. It looks like you're diving back into for the original Xbox