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