Press start while choosing a mission and choose Extras and choose Enter Secret Code
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