Escape Pod

The "Gem Warship Escape Pod" is a Gem-activated pod fired from the middle finger of the Gem Warship in emergencies.

"Jail Break"
After Garnet destroyed the Gem Warship power core, in the confusion Peridot slammed her face onto the floor, activating an escape pod to form around her, and used it to escape the crashing ship and landed somewhere on Earth in North America. It is later shown to have landed in a field somewhere outside of Beach City.

"Joy Ride"
Steven and the cool kids discover the abandoned pod a few miles outside of Beach City. The escape pod had crashed into a field and created a square-shaped crop circle pattern around it. Upon closer investigation, the pod is revealed to be empty. Under peer pressure, Steven enters the pod where he figures out that the pod "listens to what his hands do". The pods begins to act like a manually-controlled Plug Robonoid in shape and movement. However, the pod locks down during his shenanigans and begins filling with a liquid that is breathable, at least to Steven. Afterwards, the pod starts firing on the cool kids and shoots distress flares into the air before finally being cleaved in half by Garnet. At the end of the episode, Sour Cream throws a rock at the pod shouting "I'm Invincible!"

Abilities
The escape pod is able to be controlled by hand movement. Once activated, it is shown to move around like a plug robonoid. When the pod's weapons are activated, the outer glass screen becomes opaque. It has been shown that the escape pod can also levitate, shoot lasers, fire rockets, and fire off distress signals in the shape and form of a diamond.

Trivia

 * The owner of the escape pod, Peridot, has yet to be found.
 * When the Gem Warship Escape Pod landed, it left a huge glowing mark and when the flare was activated, it shot a huge constellation-like flare that both resembled a diamond, which could be reference to Yellow Diamond.
 * The breathable liquid it creates is a reference to LCL, similarly an oxygen-rich liquid, that sustains the pilots inside the Evangelions in the anime metaseries "Neon Genesis Evangelion". Steven's reaction to the pod filling up was identical to that of Shinji Ikari, Evangelion's protagonist, the first time his Entry Plug filled with LCL.
 * It is possible that when Steven accidentally fired up flares in "Joy Ride", he may have alerted the Gem Homeworld.