A close up of a robot standing in front of a wall

Evil R2D2; R2D2's familiar domed head and cylindrical body still remain, but his once pristine white, blue, and silver exterior is now covered in dark stains of grime and soot. Menacing spikes and sharp blades have been welded onto his body, giving him a dangerous and threatening look. His dome head frequently rotates to survey his surroundings with his large, red optical sensor—which now glows brightly like a vicious eye, the metal around it blackened to accentuate the red glow. He keeps multiple sensor panels and access ports open, with tools and weapons jutting out instead of handy gadgets, ready to be deployed at any moment against perceived enemies. Thick, heavy chains have been wrapped around his body, clinking threateningly as R2 rolls along. Over his usual beeps and whistles, the sound of gears grinding emanates from within him. Where his connections to main computer networks were once depicted in a cheerful blue, they now pulse an ominous red, like blood coursing through veins. The insignia of the Evil Empire has been stamped onto R2D2's side, marking him as aligned to sinister forces instead of the heroic rebels. His movements, once friendly and helpful, are now cold, calculated, and aggressive—ready to carry out violence and destruction at the command of the Empire without hesitation or remorse.