Project: Overkill Cheats - PlayStation

Cloaking device
Press [Start] during game play and highlight the "Sound Volume" selection. Hold [Triangle] and press [Square], [Circle]x2, [Square]. Release [Triangle], hold [X] and press [Triangle]x2. Release [X]. The word "Cheater" will appear at the top of the screen to confirm correct code entry.

Shield
Press [Start] during game play and highlight the "Sound Volume" selection. Hold [Right], and press [Circle], [Square], [Triangle]. Release [Right], hold [Left], and press [Square], [Circle], [X]. Release [Left] and resume game play with a shield. The word "Cheater" will appear at the top of the screen to confirm correct code entry.

Restore health
Press [Start] during game play and highlight the "Sound Volume" selection. Hold [Square] and press [Circle], [X], [Triangle]. Release [Square], hold [Circle], and press [Square], [X], [Triangle]. Release [Circle]. The word "Cheater" will appear at the top of the screen to confirm correct code entry.

Invincibility
Press [Start] during game play and highlight the "Sound Volume" selection. Hold [Right] and press [Circle], [Square], [Triangle]. Hold [Left] and press [Circle], [Square], and [X].

Restore ammunition
Press [Start] during game play and highlight the "Sound Volume" selection. Hold [Circle] and press [Square]. Release [Circle], hold [Triangle], and press [X]. Release [Triangle], hold [Circle], and press "X." Release [Circle], hold [X], press [Square]. Release [X]. The word "Cheater" will appear at the top of the screen to confirm correct code entry.

Turbo
Press [Start] during game play and highlight the "Sound Volume" selection. Hold [Up] and press [Triangle]x3. Release [Up], hold [Down] and press [X], [Square], [Circle]. Release [Down]. The word "Cheater" will appear at the top of the screen to confirm correct code entry.

Predator
Press [Start] during game play and highlight the "Sound Volume" selection. Hold [Triangle] and press [Square], [X]x2 [Square]. Release [Triangle], hold [X], and press [Triangle]x2.

End current level
Press [Start] during game play and highlight the "Sound Volume" selection. Hold [X], [Up], [Down], [Up]. Hold [Square] and press [Circle]. Release [Square], hold [X], and press [Triangle]. Release [X]. The word "Cheater" will appear at the top of the screen to confirm correct code entry.

Body slide
Press [Start] during game play and highlight the "Sound Volume" selection. Press [Up], [Down]x2, [Up]. Hold [Square] and press [Circle]. Press [Triangle], [X] (or [X], [Triangle])

Test mode
Press [Start] during game play and highlight the "Sound Volume" selection. Press [Left], [Right]x2, [Left]. Hold [X] and press [Triangle]. Hold [Triangle] and press [X].

Secret level
There is a secret entrance to the Lost city in the Throg Breeding Facility. It is located in the lower right corner of the map. Break through three or four secret doors to find the exit. The Lost City is full of insect-monster larvae and the Throg-Viscerian genetic brain mutations.