Red King became a Spark Doll in the conclusion of the Dark Spark War due to the Darkness Spark's powers. His Spark Doll fell to Mt. Furuboshi in the Ultraman Ginga Theater Special along with all of the other Spark Dolls that make up Tyrant.
Red King Spark Doll Default
After Dark Lugiel's defeat, Red King's Spark Doll is likely to have reverted back to it's original form and departed Earth to return home.
EX Red King Spark Doll will be used in Ultraman Ginga S, where the item was revealed as part of Alien Chibu Exceller's collection. He gave it to Android One Zero for her to MonsLive with the Chibu Spark until it was lost to Shou, whom used it for his own purposes.
Red King, like most ancient monsters, possesses great physical strength but lacks any otherwise supernatural powers at default. Its feet are considered its weak point as dropping boulders onto its feet caused it considerable pain.
