Shoot down 20 alien fighters
Kill 100 aliens
Kill 3 aliens at once
Blow up 5 enemy Gunships or Dropships
Kill 50 aliens
Take steroids in SP
Drink a beer in SP
Knock out the talent at the talk show
Defeat the Cycloid
Doodle something on the whiteboard in SP
You got them all!
Kill 6 aliens with the forklift
Kill 10 aliens with environmental explosives
Kill 10 aliens with tossed objects
Kill 15 aliens with melee attacks while on steroids
Eat 10 pieces of food in SP
Get knocked down 10 times
Find and steal a piece of poo
Get hit by 10 Pregnator bombs
Listen to all phone messages
Find all 3 helmets in the SP campaign
Drink all of the beers in the strip club
Kill all of the catfish in the underwater level
Look at every page of a calendar in SP
Put a Trip Mine on a live alien
Win air hockey with a score of 7-0 in the strip club
Earn a 1,000,000 pinball score in SP
Kill 250 aliens
Use a Holoduke in SP
Drink beer while on steroids or vice-versa in SP
Discover all ego cap rewards
Carry the gold pistol through the whole SP campaign
Shoot down the blimp above the stadium
Win a game of Alien Abortion in the strip club
Unlock the secret closet at the end of the Forkstop
Kill 30 aliens with headshots
Defeat the Battlelord in Las Vegas
Defeat the Alien Queen
Defeat the Battlelord on the Hoover Dam
Defeat the Octaking
Defeat the Leech
Complete the SP campaign on Easy Difficulty
Complete the SP campaign on Normal Difficulty
Complete the SP campaign on Hard Difficulty
Complete the SP campaign on Insane Difficulty
Foot stomp 12 aliens
Watch the credits all the way through
Kill 10 expanded enemies with melee attacks
Kill 3 enemies within 3 seconds with the Impregnader
Let 20 enemies die by someone else's hand
Kill 30 enemies with the moon rover
Earn a 1,000,000 pinball score on the Scientits pinball machine
Finish Doctor Proton
Discover and reject the video game that lets you slap women
Beat The Doctor Who Cloned Me on Easy Difficulty
Beat The Doctor Who Cloned Me on Normal Difficulty
Execute 20 aliens
Beat The Doctor Who Cloned Me on Hard Difficulty
Beat The Doctor Who Cloned Me on Insane Difficulty
Discover all Ego cap rewards in The Doctor Who Cloned Me
Kill 10 aliens with Trip Mines
Kill 15 frozen aliens
Kill 15 aliens with the monster truck
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