NetJak
- Xbox review by search66, score 8 out of 10. "I love the game and in the same breath hate it."
- http://www.netjak.com/Reviews/xbox/defend.htm

GameSpot
- Information on the PlayStation 2 version, including review, news, screen shots, movies, and FAQs.
- http://www.gamespot.com/ps2/action/defender/

IGN.com
- Xbox review by Kaiser Hwang, score 7.1 out of 10. "Those who've played the original Defender are those that will appreciate this game the most."
- http://xbox.ign.com/articles/376/376005p1.html

Gaming Age
- PlayStation 2 review by Tim Lewinson, score B-. "With great gameplay, varied missions and solid controls, Defender is another Midway classic tuned for a new generation of gamers."
- http://www.gaming-age.com/cgi-bin/reviews/review.pl?sys=ps2&game=defender

GameZone
- Xbox review by Louis Bedigian, score 6 out of 10. "As the long-awaited remake to a 2D classic, Defender had so much (perhaps too much) to live up to."
- http://xbox.gamezone.com/gzreviews/r20159.htm