No it wasn't. The Corneria music was the track that plays on Venom in SF64.
Edit: Now that I think about it, though, it was the same song in SF for Venom. Either way, it was only the one song, not a medley.
I'm sorry, Mr. Sakurai. But that song didn't appear in Melee. It is, in fact, an arrangement from the original Star Fox for the SNES, whilst the two Star Fox musical tracks from Melee were actually from Star Fox 64.
A better thing to wonder is if the stage will/could be integrated into the next Animal Crossing game. I think it'd be pretty awesome to check the shop, pick some weeds, talk to a monkey, then switch games and see that monkey watching me kill people.
I became supreme overlord, became sick of my powers, and used my magical abilities to revert everyone's memories to the way it was before. DJP then used my momentary weakness to usurp power and obliterate UnMod with a laser.
It's not that hard to see. A few of the characters are actually scaled up or down from their canonical sizes to be fitted into the playable character mold (i.e Bowser, all of the Pokes but Mewtwo, Kirby, MetaKnight), so it'd be pretty plausible to just rescale him to around Bowser's size.