So It Begins...
Complete any non-tutorial level

Trofeo Segreto

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Determined
Died 100 times and still here

Zombies, Shmombies...
Kill over 1000 zombies

Survivor
Get x5 score-multiplier

Boom!
Kill 5 or more zombies in one shot

Untouchable
Complete level without taking any damage

Pacifist
Complete level without killing a single zombie

Brawler
Kill 20 zombies in a row using only melee attacks

Kicker
Kill 20 zombies in a row using only slide-kick attacks

Gunslinger
Kill 50 zombies in a row using only firearms

Smasher
Kill 30 zombies in a row using only blunt weapons

Weapons? I have them All!
Acquire all the available weapons

I Can Use It Again And Again!
Retrieve five crossbow bolts from dead zombies

Supernatural
Upgrade all player abilities to maximum levels

Explorer
Complete every level available in the game

That Was Easy
Complete game on easy difficulty

Done
Complete game on normal difficulty

Real Survivor
Complete game on hard difficulty