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