Invincibility:
Enter [Raven] [Salmon] [Eagle] [Bear] [Lizard] [Rabbit] as a password at the 
"New Secret" screen.

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

Unlimited ammunition:
Enter [Salmon] [Elk] [Bull] [Snake] [Eagle] [Salmon] as a password at the "New 
Secret" screen.

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

Level 1:
Enter [Frog] [Elk] [Horse] [Dragonfly] [Wolf] [Rabbit] as a password at the 
"New Secret" screen.

Level 2:
Enter [Owl] [Owl] [Horse] [Elk] [Elk] [Elk] as a password at the "New Secret" 
screen.

Level 3:
Enter [Owl] [Rabbit] [Bear] [Insect] [Frog] [Cougar] as a password at the 
"New Secret" screen.

Level 4:
Enter [Bear] [Horse] [Raven] [Eagle] [Horse] [Coyote] as a password at the 
"New Secret" screen.

Level 5:
Enter [Bear] [Dragonfly] [Horse] [Bear] [Frog] [Elk] as a password at the 
"New Secret" screen.

Headless mode:
Enter [Lizard] [Elk] [Eagle] [Owl] [Salmon] [Horse] as a password at the 
"New Secret" screen. All enemies will be headless in a single player game.

Big heads:
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.

Big hands and feet:
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. 

Stick man mode:
Enter [Horse] [Eagle] [Snake] [Cougar] [Insect] [Salmon] as a password at 
the "New Secret" screen. All enemies will be twig-like in a single player 
game.

Tiny mode:
Enter [Frog] [Frog] [Salmon] [Insect] [Wolf] [Cougar] as a password at the 
"New Secret" screen. . All enemies will be smaller in a single player game.

Mannequin mode:
Enter [Snake] [Bull] [Snake] [Frog] [Bear] [Elk] as a password at the "New 
Secret" screen. 

Pen and ink mode:
Enter [Jaguar] [Horse] [Elk] [Fish] [Jaguar] [Hawk] as a password at the 
"New Secret" screen.

Gouraud shaded graphics:
Enter [Lizard] [Salmon] [Insect] [Salmon] [Wolf] [Dragonfly] as a password 
at the "New Secret" screen. 

Gasping mode:
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. 

Menu madness:
Enter [Rabbit] [Owl] [Horse] [Insect] [Bear] [Bear] as a password at the 
"New Secret" screen.

View credits:
Enter [Elk] [Elk] [Elk] [Elk] [Elk] [Elk] as a password at the "New Secret" 
screen.

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