The Zantetsu Sword is a special weapon introduced in Metal Slug 6. It is represented by the icon .
The Zantetsu Sword is a knife (or hatchet) that imbues the holder's melee attack with large waves of energy, powerful enough to destroy armored vehicles. It can cut through the enemy's bullets and weaponry, at the cost of a low ammo count, so use it wisely.
Unlike other special weapons, the Zantetsu Sword can only be fired sideways.
|Metal Slug 6||Easy||20||30||10||N/A|
|Metal Slug 7/XX||Beginner||20||30||10||24|
|Metal Slug 6 and Metal Slug 7|
|Metal Slug XX|
- Zantetsu (斬鉄, Zantetsu) is Japanese for "iron-cutting", making this weapon an "Iron Cutting Sword".
- As Ralf's melee attacks are quicker than other characters, there is a shorter interval between each shot when Ralf uses the Zantetsu Sword.
- If shot correctly, the Zantetsu Sword is the strongest weapon in the Metal Slug series.
|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 | Armor Piercer | Anti-Materiel Rifle | Freeze Gun|