User blog comment:Rainbowroad6w/An unreleased skateboarding Sonic game intended to be for XBox?/@comment-1535286-20110430032229/@comment-878100-20110430033254

Have you seen the original stuff of Sonic 2? All they did is they took the music and sprites and such from Sonic 1 and put it into Sonic 2. They ended up changing the music.

Probably at this time they were making the game they were specifically working on the game and not the sound.

Like lots of the games they had done from the past, it probably wasn't done from scratch or built from the ground up.