Bloodborne Orphan of Kos Boss Guide & Strategy Tips
Master the bloodborne orphan of kos fight with our expert strategy guide. Learn phases, backstab tricks, and best loadouts to conquer the DLC.
Published: Bloodborne Wiki Editorial Team
Table of Contents
Introduction to the Final Nightmare
Facing the bloodborne orphan of kos is widely considered the ultimate test of skill in FromSoftware's masterpiece. This grueling confrontation closes out the Old Hunters expansion, making it vital to understand his erratic movement patterns and devastating attacks if you want to finally put the Fishing Hamlet nightmare to rest.
Preparing Your Build and Consumables
Before stepping into the arena, proper preparation can drastically shorten your attempts against the bloodborne orphan of kos. Community reports and veteran player experience highlight specific loadouts that maximize damage output and survivability against this relentless adversary.
Equipment / Item
Purpose / Effect
Recommended Usage
+10 Saw Cleaver
High base physical damage with serrated bonus
Primary weapon for fast R1 combos and quick recovery
Fire Paper
Adds flat fire damage to weapon
Apply before entering and during phase transitions
Beast Blood Pellet
Boosts physical damage as the meter fills
Use alongside fire paper for massive burst damage windows
Blood Rapture Rune
Restores health upon visceral attacks
Equip to gain crucial HP back after backstabs and parries
Ensure your primary weapon is upgraded to maximum tier (+10) using Blood Rocks.
Stock up on Quick Silver Bullets, Blood Vials, and Throwing Knives.
Equip the Blood Rapture rune obtained from defeating the Shadows of Yharnam.
Mastering Phase One: Modes and Backstab Windows
During the first phase, the bloodborne orphan of kos alternates between a passive "chill" mode and an aggressive sprint mode. When he is slowly pacing around, you can use throwing knives to provoke him into his aggressive stance, setting up predictable punish opportunities.
Check His Stance: Observe whether he is walking casually or sprinting toward you to determine his current combat mode.
Bait the Jump Attack: When he is aggressive, wait for his signature overhead leap rather than his close-range uppercut.
Position Carefully: Casually walk underneath him while he is airborne to avoid rolling away, which places you too far for a punish.
Execute Backstab: Land a fully charged R2 attack directly into his back, followed immediately by an R1 press for a high-damage visceral attack.
For more details on PlayStation 4 and backward-compatible PlayStation 5 action RPGs, check out the official PlayStation Store Bloodborne Page.
Surviving Phase Two: Relentless Aggression
When the bloodborne orphan of kos triggers his second phase with a mighty scream, his speed and aggression skyrocket. Staying at a distance is extremely dangerous because it prompts him to unleash massive projectile explosions across the arena floor.
Tip
Stay extremely close to his body during phase two. Remaining in melee range prevents him from utilizing his wide-area magic ball explosions, forcing him to rely on dodgeable physical swipes instead.
Attack Type
Phase
Counter Strategy
Overhead Slam
Phase 1
Walk underneath, charge R2, and execute visceral
Magic Plop Balls
Phase 2
Time your dodge forward just before impact
Kos Lightning
Phase 2
Run away from the corpse until the shockwave passes, then rush back in
Warning
When the bloodborne orphan of kos screams and summons lightning from the corpse in the distance, sprint away from the center of the arena immediately. Once the lightning clears, close the gap instantly to resume close-quarters pressure.
Claiming Your Victory
Once you finally deplete his health bar, the fight is not technically over yet. Make sure to head toward the dark phantom shade lingering over the water and strike it once to trigger the "Nightmare Slain" message, successfully completing the DLC storyline.
Post-Fight Checklist
Strike the glowing shadow near the corpse to officially end the encounter, secure your completion status, and unlock the final secrets of the DLC area.
Frequently Asked Questions
What level should I be to fight the bloodborne orphan of kos?
Most players find success facing the bloodborne orphan of kos around character level 70 to 90, paired with a fully upgraded weapon and optimized blood gems.
How do I trigger a visceral attack on the bloodborne orphan of kos?
You can trigger visceral attacks by walking underneath his jump attack in phase one, landing a charged R2 backstab, or occasionally parrying his standard combos with a firearm.
Why does the boss spam magic explosions in phase two?
If you create too much distance during the second phase, the bloodborne orphan of kos will frequently use his ranged projectile and explosion attacks. Staying close in melee range mitigates this behavior.
Do I need to do anything after defeating the boss?
Yes, after defeating the bloodborne orphan of kos, you must hit the dark shadow hovering over the water to get the "Nightmare Slain" notification and officially complete the expansion.