The “Kadokawa version” includes the Ultra Kaijū Gijinka Keikaku Galaxy Days four-panel manga by Bakutendo, and the Kaijū Girls: Ultra Kaijū Gijinka Keikaku anime shorts.
Retailer Amazon’s listing for the Blu-ray Disc box set for the second season of Kaijū Girls: Ultra Kaijū Gijinka Keikaku states that it will include “all 12 episodes.”
The anime is part of Tsuburaya Productions’ Ultra Kaijū Gijinka Keikaku project, which transforms kaijū (monsters) from the Ultraman live-action special-effects series into cute, female anthropomorphized monsters.
The project also includes figures by Plex, and a “Kodansha version,” which includes the Ultra Journey – Twin Tail Shōjo to Twin Tail na Boku manga.