Game Revolution - Contains game shark codes. - http://www.gamerevolution.com/oldsite/games/codes/dreamcast/heavy_metal.htm
GameSpot - Review by Ryan MacDonald [3.4/10], with screenshots: "Heavy Metal is simply an uninteresting licensed 3D arena shooter". - http://www.gamespot.com/dreamcast/action/heavymetalgeomatrix/review.html
GameSpy.com - Review (75/100), with screen shots. - http://archive.gamespy.com/reviews/september01/geomatrix/
IGN - Review, score 7.5/10. "Big guns, big explosions, and lots of big hair. But how long will you play it?" - http://dreamcast.ign.com/articles/166/166655p1.html