New Getter Robo is a oVA anime that premiered in spring 2004, produced by Brain's Base.

About the production: the story comes from an original script, there are 13 episodes of about 24 minutes and its current status is "finished".

Its main genres are action, adventure, horror, mecha and sci-fi, with themes such as Super Robot, Demons, Gore and Male Protagonist.

On AniList, New Getter Robo has an average score of 74%, a good score, and appears on 4,821 users' lists.

Humanity is under attack by demonic creatures called Oni. Unable to fight back by any other means, the scientist Dr. Saotome creates a series of giant robots that harness the mysterious power of Getter Rays, giving them the strength necessary to fight the Oni. The strongest of these is Getter Robo, and Saotome must enlist three very different men to pilot it - martial artist Ryoma Nagare, criminal leader Hayato Jin, and monk Benkei Musashibou. Together, the Getter Team fights to end the Oni menace forever. (Source: Anime News Network)

Official synopsis from AniList.