Here is the full list of all 35 Donuts'n'Justice achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Change the DNA of enemies 100x
Kill 100 civilians
Die 50 times
Kill 50 Enemies with Sniper Rifle
Wear the King Crown
Kill 100 Enemies with Freeze Gun
Wear the Viking Helmet
Wear the Sombrero
Make 500x Combo
Collect 1000 Badges
Wear the Chef Hat
Wear the Pope Hat
Save 100 civilians
Wear the Santa Hat
Kill All the Bosses
Finish the game on the ThumbSucker difficulty
Eat 100 Donuts
Earn Score Higher than 5000
Kill 1.000 Enemies
Earn Score Higher than 4000
Earn Score Higher than 1500
Earn Score Higher than 2000
Earn Score Higher than 3000
Earn Score Higher than 1000
Earn Score Higher than 2500
Gather 1.000 Dollars
Throw 100 grenades
Collect 100 Pumpkins
Summon 77 Witches
Kill 100 Enemies with FlameThrower
Eat 100 Mushrooms
Collect 100 Candies
Catch 69 Ghosts
Earn Score Higher than 500
Kill Your First Enemy