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