Press escape (ESC) during game play and

enter your which ever code you want.

You won't get any confirmation that anything has been enabled.

Cheat  Effect 

遊戲中按ESC回到設定畫面.輸入以下作弊碼.再回到遊戲~

IFGDGUN   -     Gives you a pistol. 

IFMDAMAGE -  (Didn't seem to do much when I tried however

                         it's supposed to increase damage.)

IFDAURA  -      Change aura to infernal. 

IFUAMMO   -     Full ammo including grenades and mines. 

IFGPLASMA -   Gives you a plasma gun.

IFUAMMO 无限子弹

IFGPLASMA   给予激光枪(威力极大)

IFGDGUN 给予手枪

付送一个多数人最想要的:IFUMANA 无限的MANA