Secret Codes: Playstation 2/Playstation/Dreamcast/Nintendo 64/Game Boy

From the Publisher: BradyGames Secret Codes 2001 Pocket Guide is a massive collection of the best cheats, tricks and secret codes for the hottest games from the PlayStation, PlayStation 2, Sega Dreamcast, Nintendo 64 and Game Boy consoles. No more endless searching on the internet for cheats — they're all right here in an easy-to-use format.