Turok 3: Shadow of Oblivion [N64]

All Keys
At the cheat screen enter the following symbols.
Lizard, Dragonfly, Bull, Bear, Wolf, Eagle

All Weapons
At the cheat screen enter the following symbols.
Owl, Bear, Owl, Insect, Hawk, Owl

Big Head Mode
At the cheat screen enter the following symbols.
Cougar, Wolf, Snake, Rabbit, Lizard, Coyote

Deathmatch Mannequins
At the cheat screen enter the following symbols.
Snake, Bull, Snake, Frog, Bear, Elk

Gasp Mode
At the cheat screen enter the following symbols.
Dragonfly, Bull, Rabbit, Salmon, Eagle, Raven

Invincibility
Enter the following symbols at the cheat screen.
Raven, Salmon, Eagle, Bear, Lizard, Rabbit

Invincible/All Keys/Infinite Ammo/All Weapons
Enter this code in the Secrets Menu
Elk, Lizard, Dragonfly, Lizard, Hawk, Owl.

This will unlock the Invincibility, All Keys, All Weapons, and Infinite Ammo Cheats.

Pen and Ink Mode
At the cheat screen enter the following symbols.
Cougar, Horse, Elk, Salmon, Cougar, Hawk

Secret Menus
The game uses images as codes, select Enter New Secret and enter the following:
Rabbit {White}, Owl {Yellow}, Horse {Magenta}, Bug {Teal}, Bear {Orange}, Bear {Orange}

Short Characters
At the cheat screen enter the following code.
Frog, Frog, Salmon, Insect, Wolf, Cougar

Skinny Enemys
At the cheat screen enter the following codes.
Horse, Eagle, Snake, Cougar, Insect, Salmon

Unlimited Ammo
At the cheat screen enter the following symbols.
Salmon, Elk, Bull, Snake, Eagle, Salmon

Unlock nearly everything
This code is strange, considering you must activate the first one that opens the first 4 cheats, then the master code.
Elk, Lizard, Dragonfly, Lizard, Hawk, Owl.

enter this code FIRST, to get the first 4 cheats open, the 2nd one will not work until this one is entered
Horse, Bull, Wolf, Raven, Eagle, Rabbit.

Enter this one after you entered the first one. This will then unlock all but 3 cheats!

View Credits
Enter the following symbols at the cheat screen to view the credits: Elk, Elk, Elk, Elk, Elk, Elk.

Warp Level 1
Enter the following symbols at the cheat screen:
Frog, Elk, Horse, Dragonfly, Wolf, Rabbit.