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.
Zombliterator
Rasta Gonna Get Ya!
No Where To Run
Back To Back
Killer Clown
Zombinator
Undeadz 4 Lyfe Yo
The Bride
Shekly Shot Eye
What's On Tv?
Dead Monk
Prep For Bravery
Zombie Slayer
Hawk Eye
You'z Got Bit
Tea Party
Underground
The Beauty Of Birth
Zombie Hunter
Hell's For The Homeless
Don't Smoke
Chewy Dogz
Some Tongue?
Survive 15 Minutes In Menu
kill 500 Menu Zoms
Kill 100 Menu Zoms
Kill 50 Menu Zoms
Hard Ass Hooker
Trip 'Em
Blow 'Em Up