*Mecha Sally is a transformation that appears in the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics. She was the robian version of Sally Acorn, and a deadly enforcer serving Dr. Eggman.
In her first appearance, she appeared as a robot version of herself.
Her second appearance is similar to her first appearance, except for the fact that when first roboticized, her eyes became red on black, while in her second form they were blue on black, as well as being more detailed and mechanical-looking.
After Dr. Eggman upgraded, modified, and weaponized her, Mecha Sally still had her metallic blue vest, but her hands became silver, her midsection was silver with a black and red crystal or panel underneath her vest, black boots, black shoulder guards in place of the round brown shoulder guards, and blue legs. In addition, her cheeks now have silver disks instead of her original brown disks and her hair has an extra pair of 'spikes' on the sides. Her tail is still brown.
Cold and efficient, Mecha Sally was completely loyal to Dr. Robotnik (later Dr. Eggman) and follows his orders without question or hesitation, even going as far as betraying the ones she had considered her friends. She also engages her opponents psychologically; delivering cold, merciless ridicule of their weaknesses while attacking them and exploiting her former allies' feelings for her against them.*