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