Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Affability	Say hello to friends.
Breakable walls	Find arms dealer on the thirdlevel.
Green one	Get a green ak.
Metamorphosis	Become something else.
No jokes	Defeat the trickster.
Not hard	Beat the final Boss on Hard Difficulty.
Pump up	Pig smash!
Sailor	Beat level 2 boss.
Similar masks	Find your soul mate.
Tank Crewman	I love driving my tank.