A2Z - http://www.a2zcheats.com/cheats/gba/index.htm Cheats, codes, hints, tips, walkthroughs, FAQs, and guides.
eLook - http://www.elook.org/games/cheats/gba/381.shtml Summary of cheats and codes.
GBA Cheat & Beat - http://www.gbacheats.fsnet.co.uk Up-to-date cheats, reviews, walkthroughs, patches, codes and savegame files.
GBCheats - http://www.angelfire.com/games5/gbcheats/ Includes cheats for the system.
