Unusual Weapon Mounting - Television Tropes & Idioms

Sometimes an Arm Cannon just isn't cool enough.

This is when a projectile weapon is mounted on an unusual spot on a character or vehicle.

This includes shoulder mounts and the like. Chest Blaster is a subtrope.

Examples:

The infamous shoulder-mounted, servo-turret plasma cannon used by the Predator. It is aimed using a targetting laser in the Predator's mask, which means it can accurately aim and fire while keeping its hands free.
Austin Powers is the orignating example for Machine Gun Jumblies.
One character in From Dusk Till Dawn has a gun mounted on his... belt.

Of course, some Power Rangers and Super Sentai mecha have these, most notably the Thunderstorm Megazord from Power Rangers Ninja Storm.
Kamen Rider Gatack has two BFGs on his shoulders in masked form.

Shoulder-mounted weapon batteries are a staple of Real Robot mecha.
Joint guns have been depicted in some works, usually for purposes of concealment. Dororo has a cannon that fires upwards out of his lower leg while one cyborg in Ghost In The Shell Stand Alone Complex had a heavy machinegun in his elbow.
When Archer comes back as a cyborg in Full Metal Alchemist he has a machine-gun in his mouth.
Astro Boy has machine guns in his butt. That's not just a crass joke tacked onto the 2009 CGI movie; it dates back to the original manga.
Tekkaman Blade has the Voltekka shoulder cannons used by the titular character and the other Tekkaman.
A mecha in the first season of Magical Girl Lyrical Nanoha had a pair of giant shoulder cannons. It got blown up before it could finish charging it.
Albert Heinrich, a.k.a. Cyborg 004 from Cyborg 009. Amongst the many weapons hidden in his body are missiles he can launch from his knees.

GURPS: Ultra-Tech has a shoulder mount for any large weapon. Naturally it's difficult to aim.
A common equipment in the Battle Tech universe are rocket launchers mounted on the shoulders of the Battle Mechs.
Shoulder-mounted weapons are occasionally seen in Warhammer 40000. There is also at least one unit with helmet-mounted lasers and Commissar Yarrick has a laser weapon in his bionic eye.

No More Heroes' Destroyman has a crotch-mounted laser, earpiece lasers, and of course, "machine gun jumblies"
Near the end of the third Disgaea Mao threatens to convert Sapphire to fire missiles out of her boobs.
Bayonetta has guns in her stiletto heels, and she can mount other weapons there as well.
Mechwarrior 2 allowed you to customize and choose where to locate the weapons and equipment for your mech. Although the arms and left/right torso had the most space for this, nothing stopped you from putting guns on your mech's legs, head, or center torso. More canonically, many mechs have shoulder mounts or other unusual configurations.
Gunther Hermann of Deus Ex wants a "skul-gun".

In the Transformers franchise, pretty much every single plausible (and a few impractical) location on a Transformer's body has contained a weapon.
Also, Megas XLR has tons of guns everywhere, so there should be at least few in unusual locations.
The Scotsman in Samurai Jack has one leg replaced by a machine gun. He's pretty nifty with it and never loses his balance when shooting.

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