Here is the full list of all 35 Postal III achievements.
50 kills using bees.
Piss 100 gallons of urine.
Finish your business with Krotchy.
Escape from prison.
Return Thegways to the owner
50 badgersaw kills.
100 kills using machete in melee.
Smash 50 windows.
Suck up 500 items with the shop vac.
Make Venezuela peacemakers go home.
Beat the game once. No restrictions apply. Everyone's a winner.
Destroy 50 cars.
200 kills using M-60.
300 headshot/decap kills.
Injure yourself.
Take out all the criminal scum infesting Catharsis!
Arrest eco zealots leader.
Choose path for the first time.
Disobey orders, given to you, and see what happens.
50 kills using cat.
150 kills using fire.
50 kills using boomerang machete.
Kill/incapacitate 235 terrorists.
Beat game with zero kills.n(zombies and bosses don't count)
Taze 200 victims.
Arrest 200 perps.
Kill no animals in one playthrough.
Complete game using only melee.
Complete game using only the pistol.
Complete Good path without falling off.
Euthanise 30 elderly folks.
Kill 1000 unarmed bystanders.
Complete game killing only males.
Spend 900 seconds or more in catnip bullet time.
Respawn 20 times.