GameSpy [73/100] Review by Benjamin Turner with screen shots. "While almost criminally unpolished, the core game is still fun four years later." http://www.gamespy.com/reviews/june03/sonicadventuredxgcn/

Gaming Nexus [6.2/10] Review by Cyril Lachel. "Even with better graphics and sound, Sonic Adventure feels just as dated today as it did four years ago on the Dreamcast." Includes screen shots. http://www.gamingnexus.com/Review.asp?ID=281

Gamer's Hell [6.9/10] Review with screen shots. "Although not perfect, it is enough to keep Sonic fans happy and busy until the next release of the speedy hedgehog." http://www.gamershell.com/reviews_SonicAdventureDXDirector.shtml

GameSpot Includes news, review, previews, movies, screen shots, and walkthroughs. http://www.gamespot.com/gamecube/action/sonicadventuredx/

Cyber Gaming Network [3.25/5] Review by Mark Smedinghoff. "Sonic Adventure DX unfortunately suffers from one of the worst cameras to ever be used in a videogame." Includes screen shots. http://www.cybergamingnet.com/reviews/242.php

Jolt Review of Windows version by Colin Barnwell. Includes screen shots. Score: 5 out of 10. http://www.jolt.co.uk/index.php?articleid=1190

GameFAQs: Sonic & Knuckles Includes several FAQs, walkthroughs, and cheats. http://www.gamefaqs.com/console/genesis/game/6742.html