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