In game cheats:
Press start while choosing a mission and choose Extras and choose Enter Secret Code
Password Effect
Cannonbolt; Cannonbolt; 4arms; Heatblast Dark Heroes
Wildvine, Fourarms, Heatblast, Cannonbolt DNA Force
XLR8 ;Heatblast; Wildvine; 4Arms Invincibility
Cannonbolt,heatblast,wildvine,4arms Master Control
wildvine,4arms,heatblast,wildvine unlock alien forms
Cannonblot; Heatblast; 4arms; Heatblast Unlock ALL Combos
Heatblast; XLR8; XLR8; Cannonblot Unlock All Locations on Map