Submitted by: joey
To Unlock all levels and activate cheat codes:
Create a new player with the following name:[name]CHEATER
name can be anything you like
CHEATER must be upper case (capital letters)
For ex: joeCHEATER
To use cheatcodes:
Press F2: Give you 99 grenades press F(default setting) to throw grenades.
F4: Infinite Ammo
F5: God mode
Killing enemies easily:
Submitted by: RM
To clear levels easily, run backwards in a large circle around
the map, facing the monsters chasing you and shooting the ones
closest to you as they follow. If they get too close or you need
to reload, face the other way and continue running forward in
the large circle. Note: You will run faster going forward.
Then, turn around and continue to blast them.