Cheat Mode
Hold (L1) + (R1) and press (Down], [Circle], [Up], (Square), [Down], [Down], [Up], [Up] at the main menu. Release (L1) + (R1) and a "Cheat" option will appear at the main menu. Select the "Cheat" option:

Code - Result:

8wonder - God mode
KKst0ry - Level select
GrosBras - One-hit kills
KK 999 mun - 999 ammunition
KKmuseum - Bonuses completed
lance 1nf - Unlimited spears (press [Reload] to get the spears)
KKcapone - Machine gun
KKtigun - Revolver
KKsh0tgun - Shotgun
KKsn1per - Sniper rifle

Artwork gallery
Successfully complete the game.

Weta Artworks: Environments Part 1
Get a 5% game completion.

Weta Artworks: Environments Part 2
Get a 25% game completion and obtain the correct online code for your particular game at www.kingkonggame.com.

Weta Artworks: Environments Part 3
Have at least 50,000 points and a 100% game completion.

Weta Artworks: Creatures
Get a 50% game completion.

Weta Artworks: Kong Part 1
Get a 75% game completion.

Weta Artworks: Kong Part 2
Have at least 20,000 points and a 100% game completion.

Weta Artworks: Kong Part 3
Have at least 100,000 points and a 100% game completion.

Weta Artworks: Kong Part 4
Have at least 150,000 points and a 100% game completion.

Old movie filter option
Get a 15% game completion.

High contrast filter option
Get a 100% game completion.

Horizontal flip option
Get a 100% game completion and obtain the correct online code for your particular game at www.kingkonggame.com.

Peter Jackson Interview
Have at least 75,000 points and a 100% game completion.

Philippa Boyens interview
Have at least 200,000 points, a 100% game completion, and obtain the correct online code for your particular game at www.kingkonggame.com.

Save Kong alternate ending sequence
Have at least 250,000 points and a 100% game completion.