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