Mark of the Ninja: Remastered
38 Achievements
20-25h
GOG
The Mercenary
Assassinate Kelly, the mercenary captain.
27.7%
How to unlock the The Mercenary achievement in Mark of the Ninja: Remastered - Definitive Guide
This is story related and cannot be missed. Unlocks after beating Stage 5. This is more of a puzzle than a boss fight so poses no challenge at all.