Cheats and Hints

Access Codes
Codes, FAQs, forums, and tips.
http://members.tripod.com/~videomage/

Cheatmasters
Cheats, hints, reviews, and forum.
http://www.cheatmasters.com/nintendo_cheats.html

David Dayton's Nintendo Code Book
Codes, hints, tips, tricks, and cheats.
http://codebook.potchgult.com

Game Boy Code Center
Tips, codes, and interactions for both the Game Boy and Game Boy Advance.
http://www.gameboycc.com/

Gamerz Paradise
Cheats and codes.
http://www.angelfire.com/games2/GamerzParadise/

kai666.com
Offers cheats, hints, and codes for Nintendo 64.
http://www.kai666.com

Nintendo Code Center
Features tips, codes, passwords, Game Shark, and Game Genie codes.
http://www.nintendocc.com/