Sonic & Knuckles: Flying Battery Zone Act 1 - Vocaloid a cappella

It's the BGM for Flying Battery Zone from the game, Sonic & Knuckles for the Sega Genesis. This version is actually sung by Vocaloids, and, now get this, it's in acapella!

Really?! Who whould've guessed? ¬_¬
Sung by Miku, Rin, Len, Prima, Gackupo, Luka, and Lily

You can tell I'm running out of things to say ^o^
MP3: www.mediafire.com/?b9t891q816o6bi1