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