I've been obsessed with the soundtrack for this game for a long time. It's so haphazardly manic, ambitious, barely related to the gameplay tone wise outside of being "energetic", in a broad sense. Some of the melodies go so overboard on the chiptune prog, it's awesome. Same composer as Urban Yeti^, another eclectic work of tech music genius, fitting for perhaps the only avant-garde GBA game in existence (one of very few in the general console space). Tom & Jerry: The Magic Ring on the other hand is a fairly average, unfortunately licensed, just ever so slightly tweaked out, belt-scrolling beat-em-up, which only makes its auditory audacity stand out even more. Time signatures, who needs 'em.

^oh, and of course the score for the beloved Spider-Man 2 by Treyarch. Randy Wilson, highly underrated... guy.