Here is the full list of all 30 Pixel Puzzles: UndeadZ achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
No Where To Run
Zombliterator
Back To Back
Underground
Rasta Gonna Get Ya!
Killer Clown
Trip 'Em
Survive 15 Minutes In Menu
kill 500 Menu Zoms
Zombinator
Tea Party
Undeadz 4 Lyfe Yo
The Bride
What's On Tv?
Shekly Shot Eye
Zombie Slayer
Prep For Bravery
Hawk Eye
Dead Monk
Don't Smoke
Zombie Hunter
Chewy Dogz
Hell's For The Homeless
Kill 100 Menu Zoms
Kill 50 Menu Zoms
The Beauty Of Birth
Some Tongue?
Hard Ass Hooker
You'z Got Bit
Blow 'Em Up