GameWorld

Press ` to bring up the console. Type in sv_cheats 1, then input a cheat from below.

Or you can go to Options, Keyboard, Advanced, then Enable Developer's Console to input the following codes:

God :
Enter God Mode
sv_gravity X :
Change the value of X, change gravity (only for admins)
notarget :
Enemies will not see you
impulse 101 :
Get $16,000 cash, Ammo and Armor
impulse 102 :
Shoot meatballs
map :
Jump to map
exec speedhack :
press + you will go fast, if press - will go normal