Serious Sam 3: BFE Cheats - Xbox 360

Achievements
Complete each achievement to receive the allotted gamerscore:

Are You Serious!? (30) - Complete the game in single player on unmodified serious difficulty.
Bone Crusher (5) - Smash 20 Kleers with the Sledgehammer.
Chain Explosion (10) - Kill at least 5 headless kamikazes in one explosion.
Kung-fu Fighter (10) - Perform all possible finishing moves in the game.
Load of Scrap (5) - Rip Scrapjack's head off.
Look, it's a secret (15) - Find at least 50 secrets in single player.
Maintenance time (5) - Blow a Major Biomechanoid into pieces.
Mission completed (10) - Power up the Timelock.
Classic Outfit (10) - Find Sam's classic outfit.
Co-op Master (10) - Complete the campaign in cooperative with at least 2 players.
Get the hell off my ride! (10) - Secure the bird.
Headsman (10) - Decapitate a Khnum.
Killer Jewelry (5) - Kill an enemy using the Mutilator.
Problem solver (10) - Solve the riddle of the Sphynx.
Serious Beginner (5) - Complete any level in single player.
Serious Sam (20) - Complete the single player campaign.
The doorman should wear a suit (10) - Awake the Guardian of Time.
Trick Shot (5) - Kill the kicked enemy while it is still in the air.
Wall of Bullets (5) - Kill 20 enemies with the Minigun without releasing the trigger.
Wanted Dead or Alive (10) - Rescue professor Stein. So to say.

Additionally, there are five Jewel of the Nile DLC achievements:

Look Ma, I won! (5) - Win a versus match.
Instant Killer (5) - Make at least 3 kills in one Instant Kill match.
Deathmatch Master (10) - Win 10 deathmatch games.
Flag Thief (10) - Score a total of 10 points in CTF matches.
Jewel of the Nile (20) - Complete the Jewel of The Nile single player campaign.