There is nothing too uncanny about the graphics. They were par to the current standards for Xbox. The environments were relatively sparse with a few items that were disposible. Even these items had little more than three or four pieces that flew apart and then magically disappeared. There were not many particle effects either, making Nightcrawler's "POOFS!" look more like "PIFFS!" One thing I did absolutely love was the comic book style of all of the cut scenes. I look forward to them doing this effect again, as I actually found myself completing levels just to see the story done in this format.
The sound and feel could not have been pulled off unless they had the original actors playing their parts. Hugh Jackman, Alan Cumming, Shawn Ashmore, Patrick Stewart as well as many others contributed their voices and likenesses to the sound acting and story of this game. After that, there isn't much to speak of in the aspect of sound. The intro music is there, of course, as well as the appropriate swings of Wolverine's claws and Nightcrawler's teleports.