For reasons usually related to Rule of Sexy or Rule of Funny, a woman's chest area is sometimes chosen as the source for some projectile. It could be anything from a weapon to a light show, just that it's not something that should come out of breasts (or usually even the human body).
Named for a nickname kids in The Fifties and The Sixties gave the "Bullet Bra".
A Sub Trope of Chest Blaster. Compare Victoria's Secret Compartment; contrast Breast Attack.
Aphrodite A from Mazinger Z, which uses a breast missile attack (much to the annoyance of its pilot, Sayaka Yumi). This example is the Trope Codifier, referenced or parodied in many of the entries below. (And traumatizing and/or intriguing viewers on either side of the Pacific for decades.) Diana A from the same series and Venus A (from Great Mazinger) use the same attack.
The Mazinger Angels spin-off gleefully Flanderizes this trope, using Aphrodite A and the other FemBots from the franchise and giving them an increasingly ridiculous array of weapons based on this trope.
Mahoromaticparodies the above with a scene where Mahoro fires breast missiles.
In one of the openings for Lupin III, Fujiko hits Lupin with a boxing glove hidden in her breasts.
This was later parodied in FLCL when a boxing glove comes out from between Haruka's legs, although that makes it an example of Trouser Space.
Queen's Blade gives us Melona the slime girl, who, among other things, can fire acid from her breasts by squeezing them.
In 009-1, cyborg superspy Mylene Hoffman has her breasts modified to fire from the nipples, making sure that even if she's only covered by a Modesty Bedsheet, she's never unarmed.
Lampshaded in Dr Slump. Shortly after being constructed in the first episode, Arale asks if she can shoot her breasts. Her creator angrily informed her of course she could NOT.
Macademi Wasshoi also parodies the Aphrodite A example. Unfortunately, the dog girlgiant robotmaid's breast missiles also serve as the cockpits for two of the pilots.
One of the early exiled-devils the Occult Research Club fights fires off nipple lasers.
Miiko the devilman (not the titularDevilman, just one of the others that join's Akira's devilman army) shoots a highly corrosive acid from her demon-possessed breasts.
In Final Crisis Aftermath: Run, the Human Flame gets a power upgrade that, among other things, allows him to shoot fire from where his nipples used to be.
Not launched as such, but in The Pink Panther Strikes Again, one member of the Carnival of Killers who tries to take out Clouseau is a man in drag with spikes that shoot out of his fake breasts. He tries to kill Clouseau by hugging him.
In RoboGeisha, Kikuyakko's first cybernetic upgrade is to have her right breast converted into a machine gun. (Her left breast? The trigger.) Additionally, the Tengun fire acidic breast milk from theirs.
The 'Power Pasties' in the soft-porn spoof Flesh Gordon shoot laser beams. Used for Rule of Funny when Gordon ends up wearing them.
In one of the many, many sketches on The Benny Hill Show, Benny is playing a secret agent in a trenchcoat. A sexy female spy corners him and shoots him — with breast guns. When these miss, Benny counterattacks by opening his trenchcoat and letting loose with hands-free machine gun fire.
The Lavos Core first form's beam attack near the end of Chrono Trigger.
Some of Argilla's attacks in Digital Devil Saga launch from the mouths in her breasts — mostly any form of Breath Weapon, as she doesn't have a mouth on her face.
In one strip of the beach vacation arc of Life Of Maid, Flandre slaps Sakuya in the back, which ends up knocking one of Sakuya's pads out to hit Remilia in the face and triggering Sakuya's Berserk Button in the process.
