Mario firing a Plasma Pistol; bigger shot is the charged version.
The Covenant Plasma Pistol is one of the few Halo guns featured in Mushroom Kingdom Fusion. Currently, the Covenant Plasma Pistol is featured in World 9-4, Covenant Assault.
The Covenant Plasma Pistol is a semi-automatic weapon and has 60 shots worth of ammo. This weapon can be charged for an attack dealing more damage to an enemy. Charged shots consumed 21 shots worth of ammo. This weapon is commonly found in the levels of World 9, Edge of Beyond.
| Metal Slug-based: | Heavy Machine Gun | Fire Shot | Iron Lizard | Rocket Launcher |
| Contra-based: | Machine Gun | Rifle | Spread Gun | Laser Gun | Crush Gun |
| DOOM-based: | DOOM Rocket Launcher | DOOM Shotgun |
| Quake-based: | Grenade Launcher | Lightning Gun | Nailgun | Railgun |
| Halo-based: | Covenant Plasma Pistol | Covenant Plasma Rifle | MA5B Assault Rifle | M90 Shotgun |
| X-COM-based: | Plasma Rifle | Sonic-Blasta Rifle | Gauss Pistol | Sonic Cannon |
| Other: | Fire Rod | Ice Rod | Auto-Snifit | Metool | Lancer Assault Rifle | Shock Roach | NES Zapper | Plasma Discharge Unit | Raygun | Remington Shotgun | Thompson "Tommy" Gun | Karabiner | Luger | Mega Buster |