God Mode
Type in this code while playing: olimyella 


All Weapons
Type in this code while playing: olpostal 


All Items
Type in this code while playing: oljackpot 


Flight Mode
Type in this code while playing: olairhead 


Show enemies on map
Type in this code while playing: olcds 


View framerate
Type in this code while playing: olfps 


Unlimited ammo
Type in this code while playing: olash 


Freeze enemies
Type in this code while playing: olredlite 


Unlimited oil
Type in this code while playing: olgusher 


Level skip
Type in this code while playing: olscore 


Super jump
Type in this code while playing: olbounce 


One more heart
Type in this code while playing: olrx 


Three more hearts
Type in this code while playing: olmorerx 


Full health
Type in this code while playing: oler 


Suicide mode
Type in this code while playing: oltombstone 


Warp to boss
Type in this code while playing: olappear 


Auto re-load
Type in this code while playing: olwimpy 


More oil
Type in this code while playing: olopec 


Gain a badge
Type in this code while playing: olyahoo 


Walk with the Gatling Gun
Type in this code while playing: olstinnett



Level Select
To skip to any level, enter one of the codes below while playing. 

Level       Code
Hideout     olhideout
Town        oltown
Train       oltrain
Canyon      olcanyon
Cliffs      olcliff
Ranch       olranch