Wanted Dead or Alive
Rescue professor Stein. So to say.
Serious Beginner
Complete any level in single player.
Chain Explosion
Kill at least 5 headless kamikazes in one explosion.
Get the hell off my ride!
Secure the bird.
Apprentice Egyptologist
Decipher an Egyptian text.
Co-op Beginner
Complete any level in cooperative with at least 2 players.
All Your Base Are Belong To Us!
Killer Jewelry
Kill an enemy using the Mutilator.
Problem Solver
Solve the riddle of the Sphynx.
Painful Divorce
Kill a Witch-Bride of Achriman.
Bone Crusher
Smash 20 Kleers with the Sledgehammer.
Mission Completed
Power up the Timelock.
Wall of Bullets
Kill 20 enemies with the Minigun without releasing the trigger.
Detroit Steel
Classic Outfit
Find Sam's classic outfit
The Doorman Should Wear a Suit
Awake the Guardian of Time.
Clay Pigeons
Kill 5 Cave Demons while they're in air.
Up Close and Personal
Gib 20 enemies from close range with a shotgun.
MaintenanceTime
Blow a Major Biomechanoid into pieces.
Rodeo Surfer
Use the Mutilator to surf after a Werebull.
Look, it's a secret
Find at least 10 secrets in single player.
Are You Serious
Complete the game in single player on unmodified serious difficulty.
Serious Run
Complete the game in single player in the estimated time on each level.