Actually, as it happens, in the original KSS, Dyna Blade and Wham Bam Rock just had the normal boss battle theme. It wasn't until KSSU that it was changed to match Dyna Blade's theme from Kirby Air Ride.
@Gigi19972010: Exactly, that's why there's a sensation of nostalgia associated with the music.
And yes, Miracle Matter's theme is pretty epic.
@clasby333: *Ahem* Blue.
@Kirbysmith [DJ]: I guess you're right, but hey, it is sort of her theme in KSSU. And that rock guy's too, I guess.
@DarkMario1000: You can always beatbox it =P
@Jarkes: Yeah, I also found that out just now. I don't remember the SNES game all that well.
@Afrohawkman: As a matter of fact, both those bosses have a similar battle style, what with the attack from the background and that sort of thing.
And thanks =P