[2] The series premiered on November 2, 2024, in the United States on Adult Swim's Toonami programming block and on the streaming service Max shortly after its initial broadcast.

[2] At the AfroAnimation Summit, held from April 10 to 12, 2024 in Burbank, California, Gordon-Montgomery had a panel entitled "How I Got My Show Made: The Underdog Story of Invincible Fight Girl".

[12][13] Prior to the series release, Juston Gordon-Montgomery told The Verge that he wanted his love for pro-wrestling's Attitude Era to show in Andy's character and the series overall, noting the influence of wrestling on his life, inspiration of Pokémon, Naruto, and Hajime no Ippo and added that there are many things that haven't been done in animation in the U.S., like in Japan, and saying they could do the same if they "get the shot" to do so.

[23] The series had half-hour animated episodes which premiered on Adult Swim beginning on November 3, 2024, and then released on Max shortly thereafter.

Rendy Jones of Den of Geek said that the series is a cross-between My Hero Academia and WWE, saying that the narrative keeps the story grounded, with strong world-building, and has characters which resemble "familiar faces and figures from wrestling culture".