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