Rose's Secret Armory is a location that was first shown in the episode "Lion 2: The Movie". It was where Rose Quartz stored many of her weapons and equipment that were created by Bismuth. It can be accessed when Steven puts his hand on the armory's pedestal.
The Armory is located in a cave on top of a tall cliff a couple of miles from a Warp Pad. It consists of a raised circular platform surrounded by the shallow water that covers the floor of the cave. In the center of the platform lies a pedestal that Steven can activate with his hand. It should be noted that Steven had difficulty using the platform the first time he had access to it, as he and Connie made futile attempts to pry his hand off the pedestal in the episode "Lion 2: The Movie".
Rose's Pedestal stands as a central access point to the armory. When activated, the platform lights up, and the user can choose which weapons or equipment they want to appear. The selected items will then emerge from the floor. For example, when Steven and Connie discussed the possibility of "having to chop his hand off," the platform opens for the first time to reveal a set of swords. The Robot Shooty Thing was released upon hearing the words, "and I want to see lots of explosions." When Steven is poked on certain points of his body, a variety of objects appear.
Lion brings Connie and Steven to the Armory through one of his portals. After looking through some of the equipment stored there, they accidentally unleash the Robot Shooty Thing and run away from the Armory through another portal.
Pearl, hoping to find Rose's Sword, climbs the cliff that leads up to the armory with Steven tied behind her back, only to discover that Steven had already been there and knew where to find the Sword courtesy of Lion. Prior to this revelation, Pearl had believed that she was the only other Crystal Gem aware of the Armory's existence.
Steven visits the armory briefly as he searches for something the pink key he received from Lion unlocks. His search at the armory is fruitless and he promptly leaves.
The Armor of the Fallen
The Armor of the Fallen is a collection of various suits of armor. When appearing, Connie interjects, "Woah, look at all this armor!"
Curiously, Gems do not seem to wear any armor into battle, and many of the suits are from various eras of human history (such as European knight armor and Japanese samurai armor).
In "The Return", Greg tells Steven that (during Rose Quartz's Rebellion against the Gem Homeworld) both Gems and humans died in the fighting. These suits of armor may have once belonged to humans that had fought alongside the Crystal Gems.
The Axes of Ages
The Axes of Ages is an array of various axes. Much like the Armor of the Fallen, the Axes appear to be from various eras of human history and may have once belonged to humans that had fought alongside the Crystal Gems.
The Heretic's Anguish
The Heretic's Anguish is a large statue of a woman with six sizable flails hanging from her arms with three on each arm. She has about twelve spikes on each ball with around sixteen chain links.
The woman appears to have short hair and a dress. Her posture is a T-shape with the hands clenched into fists. She wears a dress, which has different designs on it. She also appears to be wearing a headband. This statue may be depicting a Gem.
When it appears, Steven and Connie yell out "Spikey chain balls!" in reference to its weapons.
The Heretic's Anguish has a medieval theme, like many other ancient Gem artifacts.
The Quartizine Trio
- Main article: Quartizine Trio
The Giant Penny is a giant bronze penny with the United States' 2010 Union Shield design on one side. It has the words "United States of America" written on its border.
Robot Shooty Thing
- Main article: Robot Shooty Thing
- The concept of the armory being a cave filled with gadgets, armors, and artifacts, is very reminiscent of the Batman's Batcave; both have a large coin and suits/armor in glass cases.
- The Heretic's Anguish bears a slight resemblance to a type of torture device known as an Iron Maiden.