here are some cheats

Codes During Gameplay
God Mode .... UP, DOWN, UP, DOWN, UP, LEFT, DOWN, RIGHT, START
Touch of Death .... LEFT, RIGHT, DOWN, DOWN, RIGHT, LEFT, START
Full health, energy .... LEFT, RIGHT, RIGHT, LEFT, UP, DOWN, DOWN, UP, START
Speedy .... UP, LEFT, UP, RIGHT, DOWN, RIGHT, START

Codes During Change Teams Screen
Unlock all combat earned skins .... UP, DOWN, LEFT, RIGHT, LEFT, RIGHT, START
give +1 to all powers and skin ranks .... LEFT, RIGHT, UP, DOWN, UP, DOWN, START
Unlock all hero skins .... UP, UP, DOWN, DOWN, LEFT, LEFT, LEFT, START
100K shield credits .... UP, UP, UP, LEFT, RIGHT,...