Here is the full list of all 28 Tequila Zombies 3 achievements.
Kill the Super Mutant
Kill The Space Hunter
Collect all VHM issues
Kill the Green Beret
Restore 5000 health points total
Kill 7 enemies with a single barrel explosion
Kill the Undertaker
Die 28 times
Collect $500 from the coffins
Kill 50 enemies using Hawk MM1
Kill the Hog Rider
Kill 98 enemies with katana
Kill the Chainsaw Juggler
Perform 1000 headshots total
Perform Massacre x100
Freeze 50 enemies
Kill 25 Zombies Django with chainsaw
Collect 50 peppers
Find 13 secrets
Kill 50 enemies while in Jeff’s wolfe form
Break wooden door with axe
Collect 50 tequila bottles in one game
Kill the Widow
Kill the Foreman
Have $2 000 in hand
Kill 70 enemies with machete
Kill the Rat King
Kill two enemies