Cheat mode:
Press [F1] during game play, type one of the following codes, then press [F1] again to activate the corresponding cheat function. Repeat a code to disable its effect. Note: Enabling codes will mark this in the trophy room.

Effect	Code
Flight mode (cannot shoot)	please fly
Invisible to deer	please invisible
Unknown	please god

Hint: General tips:

Move into the wind to avoid having animals smelling you.

Do not move around too much. If tracks or other animal signs are present, they will eventually come to you if you are patient.

The noise from vehicles may scare the animals.

Remain still and move in a crouch position in short bursts to avoid making too much noise and scaring animals.

Using calls too much will make the animals suspicious.