Game Revolution - Offers a review by Joe Nash with screenshots. "Still, fans of action shooters will have some fun with this one." [C+] - http://www.gamerevolution.com/oldsite/games/dreamcast/action/cannon_spike.htm
Armchair Empire - Reviewed by: Mr. Nash, "Sometimes it's nice to just put aside the big, fancy, epic quest, the sophisticated and even fancier gameplay, to just have a character to move around the screen who can blast the tar out of bad guys while taking a few swings - http://www.armchairempire.com/Reviews/Dreamcast/cannon_spike.htm
All-Reviews - Reviewed by: Tom Allen, "Cannon Spike wants to be the Contra III of the Dreamcast, and it could have been if it weren't for a few flaws." [2/4] - http://www.all-reviews.com/videogames/cannon-spike.htm