Turok 3: Shadow of Oblivion

Enter [Lizard] [Dragonfly] [Bull] [Bear] [Wolf] [Eagle] as a password at the "New Secret" screen.

Enter [Owl] [Bear] [Owl] [Insect] [Hawk] [Owl] as a password at the "New Secret" screen.

At the title screen select 'secrets' then select 'enter new secret' then input [Elk] [Lizard] [Dragonfly] [Lizard] [Hawk] [Owl] select 'enter new secret' again and input [Horse] [Bull] [Wolf] [Raven] [Eagle] [Rabbit]

Enter [Lizard] [Lizard] [Dragonfly] [Horse] [Lizard] [Coyote] as a password at the "New Secret" screen. All enemies will have big ands and feet in a single player game.

Enter [Cougar] [Wolf] [Snake] [Rabbit] [Lizard] [Coyote] as a password at the "New Secret" screen. All enemies will have big heads in a single player game.

Enter [Elk] [Lizard] [Dragonfly] [Lizard] [Hawk] [Owl] as a password at the "New Secret" screen. then enter [Horse] [Bull] [Wolf] [Raven] [Eagle] [Rabbit] as a second password.

Enter [Rabbit] [Owl] [Lizard] [Elk] [Salmon] [Rabbit] as a password at the "New Secret" screen.

Enter [Dragonfly] [Bull] [Rabbit] [Salmon] [Eagle] [Raven] as a password at the "New Secret" screen. Grunting sounds will be played as you move around the menus.

In level 2, get to the part where you must deactivate the four silos. Deactivate the first one, then you deactivate the third, then the fourth, then make your way to the second one and deactivate it. If done correctly, the scientist should be floating.

In level 4, when you must open the gate to the pyramid, there is a store room without lights. It is very hard to see all the boxes on the floor to begin with, but there is also a spot with a gap to crawl under and a ledge to jump onto in the far right side of the room. If you go anywhere near the middle of these two spots, you can become stuck with no way to escape. Your character is trying to crouch while at the same time not needing to so he freezes in his tracks. You can still turn around in circles, but you will not get anywhere.