The knife can only be used when the player melees an enemy. In Resistance 2 the knife animation is very fast and effective when used at a close range.
The knife can only be used if the player tries to melee an enemy that has low health to finish it off, or for stealth kills, however the butt of the weapon the player is wielding may be used instead.
- Main article: RM-3 Knuckle-Duster
The RM-3 Knuckle-Duster is an exclusive knife to Resistance: Retribution. However, the only time it is used during the game is in cutscenes.
Resistance: Burning Skies
The knife only appears in the multiplayer mode of Resistance: Burning Skies. It can be used for close quarter combat.