First introduced in Metal Slug 2 as a normal type laser where it was simply referred to as a "Laser," there are two variants of the Laser Gun: one with a normal "L" and one with a pulsing "L" on the ammo box. The normal variant fires a thin laser beam that pierces through infantry but does little against vehicles unless under sustained fire, while the pulsing "L" variant fires a much wider beam that causes immense damage in a short amount of time.
The so-called "LASER" emits a thin stream of highly concentrated energy in the form of lights. These lights have so much energy concentrated into such a small area that the focal point is powerful enough to cut through tank armor and decimate enemy infantry like they weren't even there. Although the weapon itself is very powerful, the rate of energy consumption is very high, resulting in quick ammo depletion.
Starting in Metal Slug 6, the Laser Gun has gained the capability of moving like a Heavy Machine Gun in that it can be fired diagonally. It does have its drawbacks though as it loses power when it is moved in a diagonal direction.
A Laser Gun contains 200 ammo from Metal Slug 2 to Metal Slug 5.
|Metal Slug 6||Easy||200||300||100||N/A|
|Metal Slug 7/XX||Beginner||400||600||200||480|
|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|