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