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