you'll see a spin design very similar to that of the logo for the 2001 Dreamcast and Gamecube classic, Sonic Adventure 2. It's only appropriate that SA2 gets a major reference here, since it ...

The famous blue hedgehog is making his debut on GameCube even before Mario. The catch is, Sonic Adventure 2: Battle is only marginally different from the Dreamcast version it's ported from.