Platinum Slayer.
If you were an Orc, you'd be dead.

Knee Deep in the dead.
Slay 50 Orcs In One Level.

Orcs should die.
Slay 100 Orcs In One Level.

The Orc Slayer!
Slay 200 Orcs In One Level.

Not cool.
Slay an Orc with a shot to the Crotch.

Boom headshot.
Slay an Orc With a shot to the Head.

Tank's very much.
Slay a Tank.

Pork Slayer.
Slay 3 or more Orcs with a pigboom.

Nice try...tough guy.
Slay the general.

The dead should stay dead.
Slay the Necromancer.

Let the revenge begin.
Completed Level 1

Mulchered.
Completed Level 2.

Quality Real Estate.
Completed Level 3.

Cluster Fudge.
Completed Level 4.

Run to the Hills.
Completed Level 5.

When Pig's Fly.
Completed Level 6.

Misty Mountains.
Completed Level 7.

The Source of all Bacon.
Completed Level Bacon.

Into the castle.
Completed Level 9.

Return to the light.
Completed Level 10.

A Swampy affair.
Completed Level 11.

Too Many Legs.
Completed Level 12.

Legendary Slayer.
Completed Level 13.

Dem Bones.
Slay 30 Orc Skeletons.

Relics in the woods.
Find the hidden area within the woods.

A place in the mountains.
Find the hidden area.

Slay Big Bertha.
Slay Big Bertha, the colossal hen.