All cheats for this game by platform:
PC
Primary Collection of Cheats
Weapons
Press C + A" + T for the machine gun, 99 rounds of ammunition and 99 grenades.
Super plasma bolt
Hold [Up Arrow] until a charging sound is heard, then fire.
Fireballs
Alternately turn left and right approximately seven times, then fire.
Shield
Alternately turn left and right approximately seven times, then jump.
God mode
Hold [Up Arrow] for approximately two seconds, then press [Down Arrow] for temporary invincibility.