As Godzilla continued his rampage through the center of Tokyo, he suddenly heard a sound in the sky. King Ghidorah, now the cyborg Mecha-King Ghidorah, materialized in a flash of pulsing energy. Piloted by Emmy and reinforced with several robotic segments, Mecha-King Ghidorah easily outclassed its predecessor. It fired its gravity beams and triple laser beam at its foe. Though Godzilla managed to fire his thermonuclear breath in retaliation, the gray gargantuan was ultimately sent crashing into the surrounding buildings. Godzilla managed to regain his balance and damage both of Mecha-King Ghidorah's wings. It was time for Emmy to reveal the cyclopean cyborg's most powerful technique. Energy-conducting capture cables were fired, as was the machine hand restraint. Mecha-King Ghidorah lifted Godzilla into the sky and over the sea, but both were sent crashing into the waves when Godzilla fired his thermonuclear ray at his captor. Emmy quickly escaped in KIDS, leaving both monsters trapped on the ocean floor.
King Ghidorah appears in the second chapter of , and attacks the main protagonist, Dirty Harry, when the latter arrives on . However, intervenes and defeats King Ghidorah with a , thus saving Dirty Harry's life.
King Ghidorah makes a cameo in the eighth chapter of , "". He appears along with and in "", going to the to play with . The region in is named after him. King Ghidorah is mentioned by in "".
He makes a cameo in the crowd of the 22nd in the episode "". Also, enemies similar to King Ghidorah, but with only two heads appear in the video game , notably in .