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Revolutionary FighterFind all 45 Signs1.8%Very rare
Bird BrainedBrainbug at least one penguin from each of the 7 penguin ranks, including Putzki1.8%Very rare
Fear the SpurKill Brno with the knife1.8%Very rare
Friendly TransitCarry the other cooperative player for 500 meters in the same chapter without dying1.9%Very rare
Hydrogen RunEscape the large zeppelin with 40 seconds or more on the timer2%Very rare
Rebellious LaborerFind 20 Signs2.1%Very rare
High TreasonBrainbug the penguin above the star in Chapter 6 (Single Player)3.3%Very rare
Own PharmacyKill 6 helicopter penguins with their own missiles4%Very rare
Too Many Too SoonKill 3 enemies with one grenade4.2%Very rare
Big Blimpin'Kill all penguins stationed on the big zeppelin in Chapter 8 (Single Player)5.1%Rare
Brainbug FeverBrainbug 30 enemies6.3%Rare
Excessive StackingStack all 3 crates near the end of Chapter 11 (Single Player)7.6%Rare
Dirty Half-DozenComplete the Cooperative game mode8.2%Rare
TurncoatKill 20 enemies while brainbugging8.6%Rare
Flight InstructorJuggle an enemy for 10 seconds10.2%Rare
Door SentryKill 30 Penguins as they step out of a door10.6%Rare
Personal SpacePunch or kick 100 times10.7%Rare
Mission CompleteOverthrow Putzki and liberate Albatropolis10.7%Rare
Two Birds One StoneKill 2 enemies with one grenade11.7%Rare
HindenburgerKill all penguins stationed on the zeppelin in Chapter 3 (Single Player)13%Rare
Hardboiled OrcaKill 300 penguins or clones15.1%Rare
Bazookin'Kill 6 enemies with the bazooka17.8%Rare
One Shot One KillKill 10 enemies, each with one gunshot18.2%Rare
Disgruntled WorkerFind 3 Signs18.4%Rare
DirigibullyKill all penguins stationed on the small zeppelin in Chapter 8 (Single Player)19.4%Rare
Laser AssistKill an enemy by knocking him into a laser door28.1%Uncommon
Own MedicineKill a helicopter penguin with his own missile30.4%Uncommon
Hardboiled SealKill 100 penguins or clones36.4%Uncommon
For What Reason?Launch the silo missile61.5%Common