Revolver

A very rare weapon with 6 uses that fires a shot in a straight line, instakilling any normal enemy and dealing 25 damage to bosses. More uses than the Sniper Rifle at the cost of shorter effective range — still one of the most efficient normal-enemy clearers in the game. On bosses, 25 damage per shot adds up quickly over 6 uses. Best saved for boss fights or ambush situations.