Here is the full list of all 16 Buckshot Roulette achievements.
Cash out immediately in 'Double or Nothing'.
Deicide.
Consume the 'Double or Nothing' pills.
Check the leaderboard.
Beat the game.
It rains metal here.
Listen to the music in the nightclub for over a minute.
Successfully shoot yourself with a blank, facing 50/50 odds.
Start the 'Double or Nothing' mode 10 times.
Double your earnings in 'Double or Nothing' and win.
Cash out over 1,000,000 in 'Double or Nothing'.
Breakfast of champions.
Lose more than 1000K in 'Double or Nothing'.
Use all items in a single turn in 'Double or Nothing'.
Uncover a live round with the magnifier and shoot yourself.
Saw off the barrel, shoot yourself, and die.