Enter one of the following cheat codes at the starting menu to activate the corresponding cheat function.
Effect
Code
All weapons in Adventure mode
firepower
Double damage for sniper rifle
pwnagesince1337
Invincibility
ownitup
Slip around everywhere
savemejebus
Super speed
runforrestrun
Unlimited ammunition
rockedinface
Easy Knite Slayr mode
Run all the way to the right (enabling the runforrestrun code is recommended). Keep running and you will not go anywhere but the Knites cannot hit you. While still running, shoot at them. Remember to run to the right. Once you get to the next stage, repeat the process.