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