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