The Stun Gun (not to be confused with the Taser) is a melee weapon used by Nadia Cassel in Metal Slug 4. It is an electric device that is used to incapacitate the target by discharging an electric shock, commonly used by police officers to subdue criminals, as well as civilians for self defense.

However, unlike the knife and the nightstick, the Taser does more damage, and can damage vehicles too.


  • There is a glitch involving Nadia's use of the Stun Gun, with the score awarded being 100 points instead of 500.
  • The Stun Gun, if used correctly, can also damage vehicles.

Standard Handgun (Murder .50AE | Murder Model-1915 .38 Mk.1Am) | AR-10 | M-3685 | M60
Limited Heavy Machine Gun | Rocket Launcher | Flame Shot | Shotgun | Laser Gun | Iron Lizard | Super Grenade | Enemy Chaser | Drop Shot | Two Machine Guns | Zantetsu Sword | Thunder Shot

Machine Gun | Special Shot | Grenade Gun | Missile Pod | Bazooka | Sniper Rifle

Bombs Grenade | Fire Bomb | Stone | Earring Bomb | Smoke Bomb | Monolith | Snowball
Melee Knife | Tonfa | Hatchet | Tomahawk | Punching Glove | Stun Gun | Wrench | Vulcan Punch | Argentine Backbreaker | Moon Slasher
Other AA Machine Gun | Thunder Cloud | Mobile Satellite