Ben 10 is one of those things that just got big for a while. If you were one of those who liked the style, you might want to try the PSP effort, Protector of Earth.
In the select mission screen, hit start, choose extras, and go to Enter Secret Code.
|Dark Heroes||Cannonbolt; Cannonbolt; 4arms; Heatblast|
|DNA Force||Wildvine, Fourarms, Heatblast, Cannonbolt|
|Invincibility||XLR8 ;Heatblast; Wildvine; 4Arms|
|unlock alien forms||wildvine,4arms,heatblast,wildvine|
|Unlock ALL Combos||Cannonblot; Heatblast; 4arms; Heatblast|
|Unlock All Locations on Map||Heatblast; XLR8; XLR8; Cannonblot|