Use the shotgun and shoot the zombie's feet or legs. Most of the time this will make the zombie do a backflip.
Cheat Codes
Effect - Code
God Mode - god
No clipping mode - ghost
All weapons - weapons
Spawn glock handgun - glock
Spawn pump-action shotgun - shotgun
Flight mode - fly
Kung Fu fists - kungfu
Disable no clipping and flight modes - walk
999 ammunition for all weapons - allammo
Spawn minigun - minigun
Spawn bolt-action sniper rifle - sniper
Spawn fire axe - axe
Spawn molotov cocktails - molotov
Toggle third person view - behindview 1
Kung Fu fists
Find and read the "Day of the Kungfu Zombies" books in various levels. When you look at this book, it will not highlight an action response. You must search for the book then press Space to read it. Your character will say "I know Kung Fu?", then tattoo will appear on your hands. Your hands are now stronger, and can kill zombies.
Level list
the farm-checkpoint 1
cornfield-checkpoint 1
cornfield-checkpoint 2
neighbors-checkpoint 1
mainstreet-checkpoint 1
detour-checkpoint 1
detour-checkpoint 2
hospital-checkpoint 1
the doctor-checkpoint 1
the doctor-checkpoint 2
override-checkpoint 1
override-checkpoint 2
fire-checkpoint 1
escape-checkpoint 1
escape-checkpoint 2
back alleys-checkpoint 1
warehouse-checkpoint 1
warehouse-checkpoint 2
police station-checkpoint 1
sniper rifle-checkpoint 1
headshot-checkpoint 1
sewers-checkpoint 1
sewers-checkpoint 2
labyrinth-checkpoint 1
labyrinth-checkpoint 2
the theater-checkpoint 1
the docks-checkpoint 1
deliverence-checkpoint 1
deliverence-checkpoint 2
city of the living checkpoint 1
city of the living checkpoint 2
heavy gunner-checkpoint 1
fiddlers green garage
fiddlers green atrium
fiddlers green penthouse
annlhilation [final level closing scene] game done
The Farm: Easy kills
At the beginning of the game, Jack notices a stranger standing in his yard.. The game will instruct you to go out and confront him. Instead, go upstairs to the attic and find your .22 rifle. The zombie will start to bash his way into your house, but it is better than running up to him unarmed, as he will almost always bite you. Also, the key to the shed in your backyard is in the basement. If you go downstairs before coming into contact with the zombies, you can get a revolver, ammo, and a hammer from the shed. These make it a lot easier to fight off the walking dead at your house, and you can complete the level twice as fast.
Backflipping zombies...