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