Gaming Trend
- Review of PlayStation 2 version, by Loren Halek: "Tony Hawk's Underground as a game feels the same as its prior iterations." [Score: 88%]
- http://www.gamingtrend.com/Reviews/review/review.php?ReviewID=158

Rewired Mind
- Review, by Paul Taylor: "Tony Hawk's Underground represents a significant improvement over the previous game in every conceivable area." [Score: 10 out of 10] (PlayStation 2)
- http://www.rewiredmind.com/review/tonyhawksunderground

GameSpy.com
- Review, by Bryn Williams: "Part of the brilliance of this game is the multitude of user-defined options and modes that exist." [Score: 5 out of 5] (PlayStation 2)
- http://ps2.gamespy.com/playstation-2/tony-hawks-underground/6339p1.html

GameSpot
- Jeff Gerstmann review [8.7/10]. Includes information, screenshots, previews, news, movies, and links. (Xbox)
- http://www.gamespot.com/xbox/sports/thug/

GameSpot (GameCube)
- Reviewed by Jeff Gerstmann [8.7/10]. Features information, previews, news, screen shots, movies, and links. (GameCube)
- http://www.gamespot.com/gamecube/sports/thug/

NetJak - Review (PlayStation 2)
- Review, by Steve Lubitz: "...Tony Hawk's Underground certainly deserves at least a rental, if not an outright purchase, as long as you don't expect it to completely rock your socks off." [Score: 8.6 out of 10]
- http://www.netjak.com/review.php/466/

WorthPlaying
- Review of PlayStation 2 version, with screen shots. Score: 9 out of 10.
- http://www.worthplaying.com/article.php?sid=15470

The Armchair Empire
- Review of PlayStation 2 version by Tolen Dante, with screen shots. "The new game is fascinating, but, for the first time, I found myself thinking back fondly to the previous games in the series." Score: 9 out of 10.
- http://www.armchairempire.com/Reviews/ps2/tony-hawks-underground.htm

Gamers Logik - Review (PlayStation 2)
- Review, by Roger Gibson: "THUG is the best game in the series to date, but not by a whole heck of a lot." [Score: 8.9 out of 10]
- http://www.gamerslogik.com/review.php?RevID=123

Gaming Nexus - Review (PlayStation 2)
- Review, by Charlie Sinhaseni: "Making the largest impact is the ability to get off of your board and walk around the environments." [Score: 9.4 out of 10]
- http://www.gamingnexus.com/Review.asp?ID=409

3D Avenue - Review (PlayStation 2)
- Review, by Simon Hutchinson: "Overall Tony Hawk's Underground is definitely the best in the franchise yet." [Score: 90 out of 100]
- http://www.3davenue.com/index.php?mod=article&id=304