When you start the game, press "Shift" + "K" to bring up the console. All codes need to be enter in lowercase and be aware that the game is still running when you enter the codes.

Code	Effect
1000 rounds	Infinite ammo
ammo birdshot	Gives birdshot ammo
ammo buckshot	Gives buckshot ammo
ammo explosive	Gives explosive ammo
ammo slug	Gives slugs ammo
barn mg	Sentry gun
barn saw	Door saw
billy the old man	Maximise all upgrades
bomb run	Calls a B2 strike
cant touch this	Invincibility
chopper run	Calls a chopper attack
drop nuke	Nuclear strike
farmer fast	Speed boost for farmer
fast fingers	Maximise rate of fire
fire line	Fire Wall
give a hobo a buck	+1 dollar
give ammo	Fills ammo
give me the world	Unlocks all levels
give supply drop	Supply drop
laser aim	Laser sight on gun
max mag	Maximise ammo capacity
meteor shower	Meteor shower
slow time	Slow down time
speed loader	Maximise reload speed
varo is the devil	Play as Varo