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