Ha, yeah, I thought that was kind of funny as well. Sounded just like one of the songs from High School Musical 3. It's the kind of music that's popular in Japan, so go figure.
My biggest gripe with the game is the final boss, Seth, who is just impossible to beat, even on the easiest setting. He's basically Street Fighter's Mew, with most of the best attacks from the best fighters in the game. There really isn't any strategy with which to beat him except pure, blind luck and that really pisses me off. I'm going to keep at it until I beat him with at least one fighter, though.