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|
|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|