Half-Life: Poke646 Cheat Codes for PC

Cheat mode
Press ~ during game play and enter one of the following console commands to activate the corresponding cheat function.

Code - Effect:

god - God mode
impulse 101 - All weapons; press [Up] + [Enter]
impluse 102 - Spawn gibs and blood
noclip - No clipping mode
notarget - Opponents ignore character
thirdperson - Third person view
firstperson - First person view