Final Chase

Final Chase is the fourteenth stage in the Dark storyline of Sonic Adventure 2 and the fourth and last stage playable with Shadow. It represents Shadow's run through the ARK's underside to intercept Sonic after finding out he's alive and heading towards the Eclipse cannon.

Plot
After finding out that he may not be the real Shadow and that Rouge is a government agent, Eggman informs him that someone is headed for the Eclipse Cannon. Shadow immediately heads out to destroy the intruder.