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
Rasta Gonna Get Ya!
Killer Clown
Back To Back
Undeadz 4 Lyfe Yo
Zombinator
Shekly Shot Eye
The Bride
What's On Tv?
Dead Monk
Prep For Bravery
Zombie Slayer
Hawk Eye
Tea Party
Underground
Trip 'Em
Hell's For The Homeless
Zombie Hunter
Chewy Dogz
Blow 'Em Up
The Beauty Of Birth
Don't Smoke
Some Tongue?
Hard Ass Hooker
You'z Got Bit
Survive 15 Minutes In Menu
kill 500 Menu Zoms
Kill 100 Menu Zoms
Kill 50 Menu Zoms