Here is the full list of all 98 Bounty of One achievements.
Win a game after picking up Big Bertha
Win a game after picking up Drink on the House
Kill undertaker with Jody
Kill Simple Tom
Win a game
Get killed by Rex, Cupcake and Brutus
Get killed
Get 180°no scope and Three is the magic number in the same run
Use the effect of reckless rush 20 times in one run
Win a game with any infamy level
Lower your cooldown reduction to 50% or less
Beat Crazy Denzel with Nigel
Kill any sheriff with an uneven amount of current health after picking up Binary System
Kill 1500 enemies with dash abilities in total
Kill Denzel
Buy everything in the Black Market
End the fight witht the Undertaker with less than half your HP
Kill Sasuto with Natoko
Kill an Elite in less than 20 seconds
Kill undertaker with Roger
Kill 150 enemies with dash abilities in one game
Inflict 5000 critical hits in total
Obtain 100% crit chance
Walk 10000 meters in total
Kill the undertaker
Kill Rex Cupcake and Brutus
Win a game after picking up Tequila
Kill 1000 enemies with onion in total
Kill undertaker with Serra
Kill the undertaker under 60 seconds
Kill undertaker with R0B3RT
Kill undertaker with all character
Kill undertaker with Natoko
Kill undertaker with Ollin
Gain at least 1 Gold Nugget
Kill 50000 enemies in total
Kill Denzel without being hit
Kill 200 enemies with dash abilities in one game
Take a hit after picking up Proud Magnet
Kill undertaker with Madlyn
Walk 5000 meters in total
Win a game with an infamy level of 5
Win a game with an infamy level of 10
Have 3 Legendary items in one run
Don't move for 25 seconds
Have an attack speed of at least 20
Use steamboots with at least 8 dashes
Have at least 8 health while you have Gluttony
Win a run in infamy 10 with Serra
Spend 100 golden nuggets in the Black Market
Don't move for 1 minute
Keep the maximum bonus of Expresso Frenzy for 25 seconds
Win a game with an infamy level of 1
Win a game with an infamy level of 2
Win a game with an infamy level of 3
Win a game with an infamy level of 4
Avoid 3 damage thanks to Plot Armor
Pick up 30 hearts in total
Take 20 hits in total
Win a game with an infamy level of 6
Win a game with an infamy level of 7
Win a game with an infamy level of 8
Win a game with an infamy level of 9
Obtain 8 dash slots
Dash 10 times in one game
Choose 5 Legendary upgrades from level ups in one game
Have 4 Legendary items in one run
Dash 100 times in total
Take 10 hits within one game
Pick up 15 hearts within one game
Walk 1000 meters in one game
Have at least 5 upgrade rerolls at once
Walk 3000 meters in one game
Get to 250% area of effect
Obtain 4 dash slots
Take 100 hits in total
Win a game with an infamy level of 15
Have a win streak of 3 with an infamy level of 15 or more
Win a daily challenge
Win a daily challenge 3 days in a row
Win a daily challenge 7 days in a row
Have a winstreak of 3 at max infamy level
Kill the undertaker at max infamy level without being hit
Win a game at max infamy level
Win a game with Serra at an infamy level of 40 or more
Win a game with Nigel at an infamy level of 40 or more
Win a game with Ollin at an infamy level of 40 or more
Win a game with Roger at an infamy level of 40 or more
Win a game with Natoko at an infamy level of 40 or more
Win a game with R0B3RT at an infamy level of 40 or more
Win a game with Madlyn at an infamy level of 40 or more
Win a game with Jody at an infamy level of 40 or more
Win a game with ALL characters at an infamy level of 40 or more
Take a mythic upgrade
Win a game with an infamy level of 20 or more
Win a game with an infamy level of 25 or more
Win a game with an infamy level of 35 or more
Win a game with an infamy level of 40 or more