Guard City
- Guard City is an Autobot from the Operation Combination portion of the Generation 1 continuity family.

Guard City is a high-ranking Autobot warrior, who commands the Micromaster Six-Teams in their defense of Earth. His arch-nemesis is the Decepticon combiner Battle Gaia.
Guard City is comprised of the following individual Autobots:
Fiction
Operation Combination story pages
As a combiner, Guard City was a master of Scramble Power. He could rearrange the Autobots he was comprised of into various formations which allowed him different special abilities.
Mach Formation: With Streetstar and Sparkride forming his legs, Guard City can reach incredible speeds.
Attack Formation: With Sparkride and Fly-up forming his arms, Guard City can use their various abilities (such as Fly-up's rotor blades) to aid him in battle.
Signal Formation: With Safety and Streetstar forming his arms, he can use the lightbars of both vehicles to make himself highly visable and demand attention during emergency situations.
Repair Formation: With Safety forming one of his arms, Guard City can call-upon the medic's skills to repair wounded soldiers.
Toys
Operation Combination
- Guard City (Multi-pack, 1992)
- Japanese ID number: TF-04

