| Achievement | How to unlock
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| Awesome Achiever | Attain three star scores for all four locations in Rescue Mode.
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| Big Spender | Spend more than 50,000 bucks in Rescue mode.
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| Bouncing Grenade Mayhem | Kill 4 Enemies with a single grenade shot in the game.
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| Castle Hostage Missions | Unlock all 4 hostages in Putzki's Castle in Rescue Mode.
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| Construction Complete | As host, collect all nine artifacts in Rescue Mode.
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| Crimes of Passion | Melee weapon kill 100 Enemies in the game.
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| Factory Hostage Missions | Unlock all 4 hostages in Putzki's Pork Plant in Rescue Mode.
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| Goose Brother Blast | Detonate a bomb near either G-man in the final show-down in Chapter 2.
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| Half Minute Hexapod | Defeat the swinging hexapod, once you see its health bar, in under 30 seconds in Chapter 5.
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| Jungle Hostage Missions | Unlock all 4 hostages in Jungliana in Rescue Mode.
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| Penguins go Pop | Headshot kill 100 enemies in the game.
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| Sharp Shooter | Attain a 80% or higher accuracy score on a mission in Rescue Mode.
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| Shoot Yourself, Putzki | Make Putzki shoot himself in Chapter 1.
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| Signs of Evolution | Find all 18 signs in all 6 chapters in Story Mode.
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| Signs of Hardboiled Chicken | Find 9 signs in any three chapters in Story Mode.
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| Signs of Revolution | Find all 3 signs of a single chapter in Story Mode.
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| Space Owl Droppings | Drop six Space Owls into the liquid ooze in Chapter 6.
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| The Great Unlocker | Unlock 100 costume items or weapons in Rescue Mode.
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| The Hardboiled Chicken | Complete all six chapters in Story Mode.
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| The Headhunter | Headshot kill 15 enemies in a row in Chapter 1.
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| The Infiltrator | Melee kill 15 Enemies in a row without triggering the alarm in Chapter 2.
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| The Informant | Get someone to tell you what's up ahead in Chapter 1.
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| The Obeyor | Make enemies kill 15 co-workers in Chapter 2.
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| The Road Less Traveled | Unlock Hardboiled Chicken for Rescue Mode in the game.
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| The Search and Rescue Strikeforce | As host, complete a rescue mission for all four locations in Rescue Mode.
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| The Spider's Nose | Stand on the Hexapod's Nose while it is firing its missiles in Chapter 4.
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| UFO Hit and Run | Kill all enemies during Hardboiled's final, successful escape in Chapter 6.
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| UFO Hostage Missions | Unlock all 4 hostages in the UFO in Rescue Mode.
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