Tokyo is the capital city of Japan. In any fictional universe it gets attacked by monsters on a regular basis.
Challenge of the GoBots cartoon
Tokyo was attacked by the mutated dinosaurs Jerigan, Kaitudan, and Ichigar, under the control of Cy-Kill and the Renegades. Large amounts of the city were damaged before the Guardians were able to get their Power Suits delivered from GoBotron, though even Courageous was only able to match the monsters. Thankfully the creatures' creator, Doctor Eiji Tsuburaya, saw the error of his ways and was able to knock the beasts out with gas so they could be captured and returned to normal.Destroy All Guardians
Leina Stol in Wolf Sword Legend OVA
After leaving Cronos and crossing a dimensional gateway Leina Stol became an organic being and arrived in Tokyo as the amnesiac Leina Haruka. There she was drawn to a girls' school and became one of the pupils, befriending the depressed Nami Kojima. On a shopping trip to Tokyo their classmate Yuko Sano was abducted by Tide Tyrant; Leina was able to regain her memories and defeat the wizard, and life in Tokyo returned to normal afterwards.Leina Stol in Wolf Sword Legend I