Kill 100 monsters with a kick
Kick is a slandered ability for all characters. To preform a kick press , be careful, kicks cost stamina. Recommend weakening the zombies first and knocking them onto the ground. Then start kicking away.
Also purchasing the ability to stomp zombie heads, pressing while the zombie is knocked down, will save you a lot of trouble. This ability is on every character and is located in the middle skill tree.