Overthrow Putzki and liberate Albatropolis

Find 20 Signs

Kill 3 enemies with one grenade

Kill 20 enemies while brainbugging

Kill all penguins stationed on the small zeppelin in Chapter 8 (Single Player)

Kill 6 helicopter penguins with their own missiles

Brainbug 30 enemies

Kill 100 penguins or clones

Punch or kick 100 times

Launch the silo missile

Acquire 1000 experience points

Collected 20000 Cloudberries

Collected 10000 Cloudberries