There are 3 versions of the flashback sequence (the scene where the Virasians examine Gamera's memories which uses footage from the first 3 Gamera movies):
- The original Japanese theatrical version which is just a short montage set to an instrumental version of the Gamera March).
- The international version which extends the sequence to include Gamera's battle with Barugon from Gamera vs. Barugon (1966) and Gyaos from Gamera vs. Gyaos (1967).
- The US American International Pictures television version which further extends the battle between Gamera and Gyaos].