Here is the full list of all 33 RUINER achievements.
Acquire all outfits
Beat the game without dying
Die 666 times
Finish Speedrun
Burn 420 enemies with flamethrower
Finish NewGame+
Destroy all dead Hosts' piles
Do 1003 pushups
Hit 50 mines with your melee weapon
Kill 75 enemies with a shield ram
Use dash 9001 times
Complete CATS quest
Unlock all iChing fortunes
Acquire all basic abilities
Finish Epilogue
Beat the game on Easy Difficulty
Beat the game on Normal Difficulty
Beat the game on Hard Difficulty
Defeat Sisters
Kill all Angels
Hack 50 enemies
Kill 3 enemies with a one explosion
Collect all bounties
Destroy Angel core in the air
Achieve 15 kills combo
Finish Arena:Colosseum
Score more than 50000 points in Arena:Colosseum
Defeat TrafficKing
Destroy 3 Angel cores in one go
Perform 50 Ruiner kills
Defeat Nerve
Reflect 100 bullets with your shield
Finish Prologue