...Where Credit is Due - 60 gamerpoints - Watch the credits from beginning to end.
Auto Dealer - 10 gamerpoints - Kill 50 enemies with the sub-machinegun.
Better than One - 25 gamerpoints - Score two headshots with one bullet.
Blind Luck - 15 gamerpoints - Kill 25 enemies using blind fire.
Boom. - 20 gamerpoints - Blow up 50 explosive objects.
Eat FIST! - 25 gamerpoints - Perform 10 single-hit melee kills.
Feeling Punchy - 30 gamerpoints - Defeat five enemies in a row using melee combat.
Fire Hazard - 20 gamerpoints - Shoot and destroy 30 fire extinguishers.
Hands-On Approach - 10 gamerpoints - Defeat an enemy using melee combat.
Hazard Avoider - 10 gamerpoints - Complete the game on the Minor Hazard difficulty setting.
Hazard Master - 40 gamerpoints - Complete the game on the Maximum Hazard difficulty setting.
Head of the Class - 30 gamerpoints - Score 100 headshots.
Headache - 10 gamerpoints - Score 20 headshots.
It's HAZARD TIME! - 15 gamerpoints - Start your first game.
Just a Flesh Wound - 40 gamerpoints - Complete a level without dying.
Maxx Karnage - 20 gamerpoints - Collect 20 Hazard pickups.
Migraine - 20 gamerpoints - Score 50 headshots.
No Pain, No Gain - 10 gamerpoints - Kill an enemy with an explosive that also damages you.
Peekaboo...I Shot You! - 10 gamerpoints - Kill 50 enemies with the sniper rifle.
Plink - 10 gamerpoints - Kill 50 enemies with the Hazard pistol.
Pseudo-Hazard - 20 gamerpoints - Complete the game on the Major Hazard difficulty setting.
Pull! - 10 gamerpoints - Kill 50 enemies with the shotgun.
Russian Attack - 10 gamerpoints - Kill 50 enemies with the AK-47.
Say "No" to Pots - 5 gamerpoints - Shoot 30 potted plants.
Second Amendment - 10 gamerpoints - Kill at least one enemy with every available gun.
Shield Master - 20 gamerpoints - Collect 20 Master Shield pickups.
Straight-A Student - 10 gamerpoints - Complete all of the in-game tutorials.
Take 5 - 5 gamerpoints - Pause the game for the first time.
Uncovered - 20 gamerpoints - Destroy 20 destructible cover objects.