Perform all possible finishing moves in the game.
Rip Scrapjack's head off.
Kill an enemy using the Mutilator.
Solve the riddle of the Sphynx.
Secure the bird.
Kill at least 5 headless kamikazes in one explosion.
Kill the kicked enemy while it is still in the air.
Rescue professor Stein. So to say.
Complete any level in single player.
Complete the single player campaign.
Complete the game in single player on unmodified serious difficulty.
Power up the Timelock.
Awake the Guardian of Time.
Find at least 50 secrets in single player.
Complete the campaign in cooperative with at least 2 players.
Decapitate a Khnum.
Smash 20 Kleers with the Sledgehammer.
Blow a Major Biomechanoid into pieces.
Kill 20 enemies with the Minigun without releasing the trigger.
Find Sam's classic outfit.
Complete the Jewel of The Nile single player campaign.
Win a versus match.
Win 10 deathmatch games.
Score a total of 10 points in CTF matches.
Make at least 3 kills in one Instant Kill match.
