As the Lars homestead prepares for attack, we see a perimeter droid with a red warning dome announcing the alert conditions. This droid is also seen in Star Wars: A New Hope when Luke Skywalker and C-3PO are topside at dusk, looking for a missing R2-D2. Its function as a perimeter droid -- and its name, 2X-K3PR -- were established in the Star Wars Customizable Card Game in 1995.

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