| Achievement | How to unlock
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| Bazookin' | Kill 6 enemies with the bazooka.
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| Big Blimpin' | Kill all penguins stationed on the big zeppelin in Chapter 8 (Single Player).
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| Bird Brained | Brainbug at least one penguin from each of the 7 penguin ranks, including Putzki.
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| Brainbug Fever | Brainbug 30 enemies.
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| Dirigibully | Kill all penguins stationed on the small zeppelin in Chapter 8 (Single Player).
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| Dirty Half-Dozen | Complete the Cooperative game mode.
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| Disgruntled Worker | Find 3 Signs.
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| Door Sentry | Kill 30 Penguins as they step out of a door.
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| Excessive Stacking | Stack all 3 crates near the end of Chapter 11 (Single Player).
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| Fear the Spur | Kill Brno with the knife.
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| Flight Instructor | Juggle an enemy for 10 seconds.
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| For What Reason? | Launch the silo missile.
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| Friendly Transit | Carry the other cooperative player for 500 meters in the same chapter without dying.
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| Hardboiled Orca | Kill 300 penguins or clones.
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| Hardboiled Seal | Kill 100 penguins or clones.
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| High Treason | Brainbug the penguin above the star in Chapter 6 (Single Player).
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| Hindenburger | Kill all penguins stationed on the zeppelin in Chapter 3 (Single Player).
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| Hydrogen Run | Escape the large zeppelin with 40 seconds or more on the timer.
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| Laser Assist | Kill an enemy by knocking him into a laser door.
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| Mission Complete | Overthrow Putzki and liberate Albatropolis.
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| One Shot One Kill | Kill 10 enemies, each with one gunshot.
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| Own Medicine | Kill a helicopter penguin with his own missile.
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| Own Pharmacy | Kill 6 helicopter penguins with their own missiles.
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| Personal Space | Punch or kick 100 times.
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| Rebellious Laborer | Find 20 Signs.
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| Revolutionary Fighter | Find all 45 Signs.
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| Too Many Too Soon | Kill 3 enemies with one grenade.
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| Turncoat | Kill 20 enemies while brainbugging.
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| Two Birds One Stone | Kill 2 enemies with one grenade.
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