It feels like Mario music. I did have a few minor problems with the music however, the biggest one being that it was slightly lower in quality than I would have liked. I've heard higher quality music come out of the N64. That's definitely not to say that the sound quality was poor though. In fact, the music was of a good quality for the N64, I just thought it could have been stepped up a little more.
Sound effects are also very well done.
All of the default sound effects fit perfectly, and are generally revamped versions of classic Mario sounds, thus adding to the feeling that this IS a Mario game. But as if that wasn't enough, you're given the option of changing the sound effects by equipping SFX badges. Personally I didn't like the badge sounds, but it's always nice to have that choice. With its light-hearted plot, loveable characters, innovative gameplay and perfectly fitting music, this game should appeal to anyone and everyone. All rights reserved.