It is possible if you have the right gear. Void Burn and Atheons Epilogie maxed. Solar burn and Voc maxed etc. Most "legit" one (without terrainexploiting).i saw recorded ist this one: [url]https://www.youtube.com/watch?v=QUdmKZtlVUM[/url] But I highly doubt that it was his first try. Speedrunners tend to make it look easy to feel special/superior. Boils down to murder the boss as quickly as possible to minimize getting oneshot.