AllRPG.com: Castlevania: Circle of the Moon: Includes screenshots, artwork, coverage, a preview, and a review for this Game Boy Advance RPG.
eLook: Contains a summary of cheats.
GameFAQs: Circle of the Moon: Includes walkthroughs, FAQs, maps, lists, secrets, codes, user reviews, and message board.
GameSpot: Reviewed by Jeff Gerstmann. Includes screen shots, reader ratings, cheat codes, glitches, and gameplay movies. Score: 9.6 out of 10.
GameSpy: Reviewed by Andrew S. Bub. Includes screen shots. Score: 82 out of 100.
GameWinners.com: Castlevania: Circle Of The Moon: Includes hints, codes, glitches, and cheats.
Neoseeker: Castlevania: Circle of the Moon: Offers screenshots, and links to reviews and cheats.
The Hardcore Gamer's Reference: Game guides, hints, enemy chart, armor and item list, castle map and boss strategy.