The only customized things are the faces. I wished for a bit of personality for each pro. There are some multimedia bits to the game. For all of the pro bowlers in the game you get a picture and short video segment on his career, usually with the pro himself telling you the straight scoop. It's kind of cool, but will mostly appeal to the person who follows the sport pretty closely rather than the casual fan.
Sound effects are appropriate to the bowling experience.
The crack of the ball on the pins when you throw a strike sounds exactly right and the crowd noise is also well done. Musically I could have done without the tracks included. They weren't actually offensive or anything, they just don't add anything. I preferred my own musical background. The manual, what there is of it, is adequate in explaining how the game works.