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