CheatCodes.com has all the official Ben 10: Protector of Earth DS 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 Monday May 20, 2013 for Ben 10: Protector of Earth are shown below. We also have this game on PlayStation 2, Nintendo DS, PSP, Wii, and sometimes tricks from other game systems will also work on Nintendo DS.
At the level select screen, enter A, B, X, Y, L button, R button, Select.
At the level select screen, enter Up, Right, Down, Left, A, B, Select.
At the level select screen, enter Left, L, Right, R, Up, Down, Select.
At the level select screen, enter A, Left, Y, Right, X, Up, B, Down, Select.
The aliens that may help defeat SixSix (he's at Cape Canaveral). Heatblast may help by pressing X EXACTLY before the fire tornado and press A, doing a affective fire attack and by jumping and pressing A, which will create a Spirit Bomb like attack. And another that really helps out is Wildvine. Go to the opposite end of the screen and jump and press A repeatedly, but watch your step for SixSix will try blasting you so try to keep in air until he stops and so on.
Found some tricks that we don't have? Got some helpful hints, tips, or tactics we don't know about? Tell us and you could win a free Nintendo DS game (or any other game you want for any video game system)!