Find Luke in the Level "Lunar Reactor".
Finish any level on "Damn, I'm Good" difficulty.
Finish the "Hollywood Holocaust" level in under 3 minutes.
Complete "Alien World Order" on any difficulty.
Find Sam in "Mirage Barrage".
Use the hookah in "High Times".
Complete "Shrapnel City" on any difficulty.
Finish a secret level.
Complete "The Birth" on any difficulty.
Kill 1000 enemies.
Complete "Lunar Apocalypse" on any difficulty.
Kill 10 bad guys in 10 seconds while on steroids.
Step in a pile of excrement.
Burn 50 bad guys to death.
Kill 5 bad guys with one shot.
Step on 40 enemies after using the Shrinker on them.
Carry all weapons with ammo at once.
Use the Incinerator.
Use a cheat code.
Complete "L.A. Meltdown" on any difficulty.
Find the Doomguy in the Level "Death Row".
Tip an exotic dancer.
Find a secret area.
Completed all trophies for the game!
Find 70 secret areas.
Kill every enemy on a level.
Listen to Developer Commentary (Use at least one trigger).
Kill a Firefly Trooper while it's flying small.