Nintendo: Did you design the music to reflect the character of Wario Land?
Tomita: I played the Game Boy Advance version, and listened to the music for the other games as well. It was completely different from the music in Nintendo’s other platform games. Some stages feature cute, girly music, even though the enemies are relentless! (laughs)
Harada: Many people on the debugging team liked the music, too, although there was quite a variety among the songs each person said was their favorite.
Via:
https://web.archive.org/web/2008110...dshakeit.com/launch/developer_interview3.html
Either way, that's pretty cool. Nice to see someone appreciated Wario Land 4's soundtrack, and took inspiration from it when composing the songs for Shake It. I mean, the latter's music isn't quite as good as the former's, but is still a nice soundtrack.