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