Cheats and Hints

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

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

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

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

Game Cheats Central - http://www.geocities.com/shamu200/index.html
Includes cheats for GameCube, Super NES, and Game Boy.

Game Tippers - http://gametippers.vzz.net/
Game Tippers is a site devoted to giving news, reviews, and codes for as many games as possible.

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

Kai666 Ultimate - http://www.kai666.com
Cheats, hints, and codes.

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

Y2K Codes - http://www.geocities.com/tgz6/codes/Code_Index.html
Contains codes for Game Boy, Nintendo 64, Super Nintendo, Nintendo Entertainment System, and Virtual Boy.