CheatCodes.com has all the official Dragon Ball: Advanced Adventure GBA cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Saturday May 25, 2013 for Dragon Ball: Advanced Adventure are shown below.
Once again, in Goku's "Story Mode", after you've beaten "Underwater Cave", get to "Land of Korin" and once you start fighting Mercenary Tao, let yourself be beaten. After you've caught Korin 10 times, beat Mercenary Tao this time and it should say that you obtained "Hand Grenade" (Item No.39)
In Goku's "Story Mode", after you have beaten "Red Ribbon Army Base", just scroll to "Baba's Palace" and beat your opponents (Spike and ???). Once done, it should say you have obtained "Gohan's Hat" (Item No.38)
In Goku's "Story Mode", after you've beat "Island of Training" just move over to "World Tournament Arena" and beat the three contestants(Giran, Nam, and Jackie Chun). If done right, it will say you've obtained "Jackie's Wig"(item No.37)
After you've beaten the "Story Mode" with Goku, just beat it again with Krillin and you will have unlocked King Piccolo for "One-On-One" battles.
After you've beaten the "Story Mode" with Krillin, just beat the "Survival" mode on "One- On-One" fighting with Piccolo. If you did it correctly, it will say that you obtained the "Mechagoggles" (Item No.42).
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