CheatCodes.com has all the official Ben 10: Protector of Earth PS2 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 Tuesday May 21, 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 PlayStation 2.
Go to location map, press start, go down to enter secret code, enter Cannonbolt, Heatblast, Wildvine, Fourarms.
It only happens on the levels where the mummys are. When your fighting with someone else, and the mummy is just staring at you, it might dance!
First you have a four arms and heatblast then a XLR8, Cannonbolt and then wildvine. You get an alien form for every crystal you get. The other alien forms are not included.
It could be on any level, be four arms, then put 2 players, on the first level, when your going to fight the boss, make the second player go to where the boss is, then RIGHT when player 2 goes in the place where the boss is, make the first player (Four arms) to get a rock by pressing the red button and there!
While the omnitrix is charging, press R2 or L2 to charge it even faster.
While in two player mode, for most aliens that you can turn into, approach the other player while you are both in alien mode. If you both press circle at the same time, there will be a big green explosion. The big explosion will power down any enemies.
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 PlayStation 2 game (or any other game you want for any video game system)!