Here is the full list of all 45 The Mercury Man achievements.
Collect all posters.
Betray Andrew.
Release Cluck-Cluck.
Release Pastelo.
Release Geldallion.
Release Gobbarbler.
Release Archangelton.
Release Riccar Fire.
Arrest Gobbarbler.
Smoke 50 cigarettes (during fights).
Drink 50 bottles of beer (during fights).
Arrest Archangelton.
Arrest Riccar Fire.
Leave Mars with a friend.
Leave Mars with the woman you love.
Refuse to shoot Anne.
Leave Mars with the man you love.
Shoot Julia.
Execute all bosses.
Bad ending.
Shoot Anne.
Take a train trip without napping.
Clear the table during the train trip.
Leave the bunker with Anne.
Kill all security guards.
Deal with Victoridge.
Kill Goldenmouth.
Execute Cluck-Cluck.
Use 20 medkids (during fights).
Execute Pastelo.
Execute Geldallion.
Execute Gobbarbler.
Execute Archangelton.
Finish gunsmith’s challenge.
Execute Riccar Fire.
Finish a fight without using beer, cigarettes and medkits from the inventory.
Spend 2 or more hours in the game.
Finish Prologue.
Finish the game without using special ammo.
Use all types of special ammo.
Finish the game without deaths.
Arrest Geldallion.
Arrest Pastelo.
Arrest all bosses.
Release all bosses.