Prototype
41 Achievements
20-25h
PS3
On Instinct
Complete the Mother Boss Battle. Details for this achievement will be revealed once unlocked
33.6%
How to unlock the On Instinct achievement in Prototype - Definitive Guide
This trophy is story related and cannot be missed. This boss fight occurs during the mission "Defeat Elizabeth Greene." For in-depth information on how to fight this boss, see this post: On Instinct - View Single Post
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