Ninja

Ninja is an achievement/trophy awarded for getting 10 throwing knife kills in Metro 2033, and 30 in Metro 2033 Redux.

Overview
This achievement is fairly easy to earn once the player diverts a little attention to it; most humans and virtually all mutants are vulnerable to throwing knives. It is easier to earn this on stealth missions such as Frontline and Black Station as knives are a one-hit kill on an unsuspecting individual. Note that killing with the secondary attack (stab) also contributes towards this.

Ninja Ниндзя