Restore health
at the password section in the in-game menu (case sensetive)
enter: ImJackCarver
Cheat mode:
Enter the following Case-Sensitive codes at the password
screen:
GiveMeTheMaps - All maps.
FeralAttack Feral - attacks in early levels.
UnleashHell - Unlimited ammo.
Bloodlust - Unlimited feral attacks.
Castaway reference
In level 1, go to the northernmost island, with the "HELP" sign on
the beach that Decay found. Stand on the campfire near the wreckage
with the "HELP" sign facing southeast. While facing southeast, walk
up the hill and into the shade. Continue walking until you reach
the top of the hill. Then, face northeast and walk through the
brush to find an area where the sun is shining brightly. Look at
that location to find Wilson, the volleyball from Castaway.