This movie compilation of Ultraman: A Special Effects Fantasy Series (1966) was distributed by Toho Company Ltd. as a co-feature for their then-latest SF/monster film, King Kong vs. Godzilla (1962).

One of the few films for Toho Company Ltd. (the film's distributor) to have a fanfare in its logo at the beginning.

This compilation film was originally intended to be an all-original feature-length film entitled "Ultraman - Operation: Giant" ("Urutoraman - Jaianto Sakusen"), which featured the Baltan Aliens as the main villains. Although a complete screenplay was written, the funding never materialized.

The ringtone of the phone at Science Patrol headquarters is the same sound made by the iconic Toho monster "Ghidorah".

Included among the "1001 tv shows you must see before you die", edited by Steven Schneider.