Complete the indicated task to unlock the achievement.

Achievement	How to unlock
A Legend in His Own Grime	Get 25 Legend arena scores.
A Perfect 10	Take no damage and achieve Legend status in 10 arenas.
All Your Base	Complete Mission 6.
An Embarrassment of Liches	Kill 5,000 zombies.
Arm Robbery	Harvest each type of enemy that can be harvested.
Armed and Dangerous	Yaiba gets an armful.
Better Dying Through Chemistry	Cause 50 elemental effects.
Breaking Baddies	Congeal 50 enemies with bile crystals.
Can't Touch This	Counter each enemy type.
Card-Carrying Dismember	Kill 1,000 zombies.
Chain of Command	Achieve a 50-hit streak.
Cold Shard Cash	Collect all the elemental shards.
Combination On Lock	Achieve a 100-hit streak.
Cremation Station	Yaiba directs traffic.
Echo Location	Complete Mission 4.
Elementary, My Dear Monday	Cause each type of elemental effect on zombies and in the environment.
Flower Power	Collect all the health shards.
Gate Crasher	Destroy an obstacle with elemental effects.
Hell or High Slaughter	Complete every Mission on Hell difficulty.
I Hate That Guy	Complete Mission 5.
Insert Coin	Play Arcade Mode.
Izuna Drop the Mic	Complete every Mission on Hard difficulty.
Just the Tip	Complete Mission 1.
Knockout King	Execute each type of enemy that can be executed.
Limb Swim	Chain 5 or more executions together.
Lust for Unlife	Activate Bloodlust 10 times.
Mad Splatter	Yaiba reveals a family secret.
Makes Me Want to Throw Up	Throw 50 zombies.
Ninja Turdle	Complete Mission 3.
Ninjacked	Complete every Mission on Nightmare difficulty.
Patient 0	Create 7 plague clouds.
Perky	Unlock all of Yaiba's upgrades.
Quartermaster	Complete Arcade Mode.
Reheated Leftover	Yaiba doesn't sleep well.
Rubble Trouble	Yaiba survives quite the tumble.
Slight Turbulence	Yaiba has a rude awakening.
Snot My Problem	Yaiba gets his hands dirty.
Staycation	Yaiba gets some fresh air.
Stone Carver	Complete Mission 7.
Swords and Swollcery	Yaiba brings up a good point.
That's a Clown Question	Yaiba joins the crowd.
That's Pretty Deep	Yaiba finds religion.
The Accidental Tourist	Yaiba sets aside time for traveling.
The City is Slicker	Complete Mission 2.
The Miracles of Science	Yaiba returns to the scene of the crime.
Time to Kill	Enter Ninja Time 50 times.
Too Many Words	Collect all of the story collectibles.
Valedictgorian	Get 50 Legend arena scores.
Well-Soiled Machine	Achieve a 200-hit streak.