Clair Obscur: Expedition 33 - Part 17: SIRENE 100% Platinum Guide – How to Defeat the Sirene Boss

SIRENE 100% Platinum Guide | Defeat the Sirene Boss In this video, I’ll show you how to defeat the dangerous Sirene in Clair Obscur: Expedition 33, while also collecting all important items and content required for 100% completion. This boss fight is among the more challenging encounters, but with the right strategy and preparation, it’s entirely manageable—and essential for the Platinum Trophy! 🎯 What’s in the Guide: 🧪 Preparation: Best abilities and items to use against Sirene 🗺️ Item locations in the Sirene area – including easily missable objects 📜 Decision paths and dialogue options around the Sirene encounter ✅ Everything you need for 100% completion and the Platinum Trophy Picto Translations: German Name - English Name Schild Affinität - Shield Affinity Effektive Heilung - Effective Heal Erheblich Gepanzert - Significantly Armored Kraftvoll Gepanzert - Powerful Shields Automatisch Regenerierend - Auto Regeneration Schützender Tod - Shielding Death Anti Bezaubert - Anti Charmed Heilendes Feuer - Healing Fire Doppelmarkierung - Double Mark ⏱️ Timestamps: 00:00 – Defeat Grosse Tete (see guide on the channel) 00:45 – Defeat Sprong (see guide on the channel) 01:47 – Sirene 100% Walkthrough 02:14 – Learn Purifying Color 02:26 – Chroma Catalyst 03:12 – Expedition 55 Journal 03:45 – Lumina Color 03:58 – Chroma Catalyst 04:35 – Chroma Catalyst 04:53 – Chroma Catalyst 05:17 – Pictos: Shield Affinity 06:20 – Weapon: Sireso 06:45 – Pictos: Effective Healing 07:10 – Lumina Color 07:30 – Pictos: Significantly Armored 07:37 – Chroma Catalyst 08:03 – Path to next section 09:10 – Collect Chroma 3525 09:37 – Repainting 10:12 – Lumina Color 10:27 – Weapon Upgrade 11:10 – Lumina Color 11:33 – Collect Chroma 3525 12:10 – Benisseur Foot: Pictos Significantly Armored 13:35 – Pictos: Auto Regeneration 13:32 – Open Mansion Door 14:29 – Lumina Color 14:48 – Pictos: Protective Death 15:05 – Lumina Color 15:27 – Chroma Catalyst 15:52 – Sirene Outfit 16:15 – Chroma Catalyst 16:58 – Revive Shard 17:43 – Chroma Catalyst 17:55 – Pictos: Anti-Charm 18:35 – Chroma Catalyst 19:15 – Collect Chroma 1763 19:40 – Sirene Outfit 20:19 – Energy Color Shard 20:29 – Pictos: Healing Fire 21:05 – Collect Chroma 1763 21:14 – Repainting 22:36 – Lumina Color 22:46 – Pictos: Double Mark 23:10 – Weapon: Chantenum 23:21 – Return to Checkpoint 23:23 – Expedition 67 Journal 23:54 – Resistance to Charm 25:25 – Boss Fight: Defeat Sirene 25:38 – Weapon: Tisseron 25:49 – Upgrade Potions 26:13 – Distribute Lumina 26:41 – Refuge 27:15 – Continue to Act 3 (covered in next video) 🎮 Welcome to the Ultimate Channel for Platinum Trophy Hunters & Completionists! 🏆 If you're looking for 100% walkthroughs, Platinum trophy guides, and full game completion tutorials, you've come to the right place. This channel is dedicated to helping gamers unlock every trophy, find all collectibles, and achieve total game completion — no matter how hard or hidden they are. 🕹️ Whether you're a: Hardcore Platinum hunter Passionate achievement collector Casual player aiming for 100% completion Or just stuck on a tough section… …this channel delivers step-by-step guides, missable trophy warnings, and time-efficient strategies to help you get that sweet Platinum — fast and frustration-free.