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