If you do a search on Napster for Sonic Adventure 2, you'll usually get a nice little collection of MP3s to show up. There're all those files that came from the demo disc like "City Escape: City Escape," "City Escape: Chased by Semi!," "Invincible," "Round Clear," "Title," "Escape From G.U.N." (that one's probably part of Theme of "SONIC"), and "Speed Up." Then, there're those other files like Theme of "SHADOW" (called "Dark Sonic's Theme" and "Warrior's Shadow" at Napster) and "Hyper Knuckles vs. Super Sonic."
[sarcasm] Oh, look! What ever do we have here? Could it be new SA2 music? [/sarcasm]
NO!! It's a fluke!! "Dark Sonic's Theme" is actually from another game: Street Fighter III: Third Strike. Here's a news story from TSSZ that was written about this fake SA2 files (submitted by Sorok Echidna):
Someone on Napster is playing us all for fools.
When I saw the update on TSSZ about Hideki Okugawa writing Dark Sonic's theme, the wheels in my head started turning. I remembered that Okugawa composed the soundtracks for *all* versions of Street Fighter III- not just New Generation, but Second Impact and Third Strike as well.
And Warrior's Shadow sounded an awful lot like a Third Strike tune... like Urien's theme, to be exact. It didn't sound quite the same as the DC version, though, so I downloaded the arcade version of the theme, and sure enough... there's our "Dark Sonic theme".
Mystery solved. I would encourage Napster users not to trust any "Sonic Adventure 2" MP3s they find. Apparently, someone thinks it's funny to fake us all out.
So, there's one mystery solved. Now to the second one: Hyper Knuckles vs. Super Sonic.
Actually, this time, this song is (more-or-less) a "Sonic" song. It's just not from Sonic Adventure 2---it's one o' the remixes from that Sonic Adventure Remix Album. This song is a remix of "KNUCKLES: Unknown from M.E." from Sonic Adventure, by Cevin Key. Nothin' more.
Sorry to you guys out there if you've been disappointed by this---I'd love to get some more genuine MP3s of music from SA2 just as bad as some o' you, I'm sure. But, I guess we'll just have to wait for the OST of SA2 to come out. (Hopefully one'll be made.) Anyway, it's better to know the truth than to fall in line with all the fake stuff.
Vec Note: Thanks to NetRaptor for exposing this too, but I put up this article posted on the Station Square forum because it's the most detailed. Another way to spot this as a fake is the fact that a level is called "Super Sonic vs. Hyper Knuckles," because that's an Archie matchup, and Super Sonic vs. Super Knuckles would make a lot more sense.