The Butterfly Knife is the main and only melee weapon that was introduced in Far Cry Instincts, and is used in the Instincts canon of Far Cry games.
Far Cry Instincts
The Butterfly Knife is extremely useful if you are attacking enemies from behind, or if you are sneaking around an area. It will also come in useful if you are planning on taking out enemies in quick succession.
- Even though Jack already has a butterfly knife and starts off with it, there will be blood on the blade even though he has not killed anything yet.