[11] A teaser released in January debuted footage, albeit briefly, from the series and revealed that it would consist of six episodes and feature five additional enemy monsters.

[5][12] A number of references to previous films and scrapped projects and unused ideas were made, and the time setting of the series (1989) is to represent both eras of Showa and Heisei.

[7] Seshita originally prepared fighting scenes twice more than actual ones, however he had to cut them in half,[15] and noted the difficulty to insert kaiju battles in every episode due to budgetary constraints.

[7] Japanese punk rock band Wanima provided both opening and ending songs, Natsuake and FLY&DIVE (jp).

[18][19] A prequel manga, GAMERA Rebirth Code Thyrsos, illustrated by Cambria Bakuhatsutarō will begin serialization on Kadokawa Shoten's Young Ace UP website on September 8, 2023.

[20] An official collaboration with the mobile game Godzilla Battle Line was made, featuring Gamera and Gyaos and Guiron as playable characters.

Club, Kayleigh Dray likewise found similar flaws in the series and likened Gamera Rebirth to Stranger Things.

"[34] James Beckett from Anime News Network scored the series a C+, commenting that "it's a shame that the ugliness of visuals will likely turn away a good many potential fans because underneath all of that jank is a solid kaiju adventure".

[38] Additionally, as above mentioned, fighting scenes were declined to the half of what Seshita originally intended[15] where it was very difficult to add kaiju battles in every episode.

[41][42] Its production committee, including the director and other executives, is willing to produce additional seasons with more budgets and increased fighting scenes,[13] however its future is uncertain.