Super Decisive Battle! Ultra Heroes!!? is episode 39 of the series, Ultraman Retsuden.
In a special episode showcasing certain events prior to theUltraman Saga film, Black King is seen as one of the many kaiju revived by Alien Bat and Gransphere to battle against the Ultra Brothers, with Black King battling with Ultraman Jack. Black King fought with Jack for a short period of time, but was eventually killed by Jack's Ultra Bracelet impaling him like a spear.
- In his original appearance, Black King beat Ultraman Jack with relative ease, but was killed with ease by Jack in this film, this is most likely due to Alien Bat's modifications.