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.
Zombliterator
No Where To Run
Rasta Gonna Get Ya!
Zombinator
Back To Back
Zombie Slayer
Killer Clown
Shekly Shot Eye
Zombie Hunter
The Bride
What's On Tv?
Survive 15 Minutes In Menu
kill 500 Menu Zoms
Kill 100 Menu Zoms
Kill 50 Menu Zoms
Undeadz 4 Lyfe Yo
Dead Monk
Prep For Bravery
Hawk Eye
Tea Party
Underground
The Beauty Of Birth
Hell's For The Homeless
Don't Smoke
Chewy Dogz
Some Tongue?
Blow 'Em Up
Hard Ass Hooker
Trip 'Em
You'z Got Bit