[2] It is a distant sequel to Athena, released a year earlier, featuring a late descendant of that game's main character.

Ocean Software on their Imagine label released home computer versions of the game for the ZX Spectrum, Commodore 64 and Amstrad in 1987.

Players utilize a special force known as "Psycho Energy" to perform a number of attacks, including creating a shield of rotating spheres around the character's body to protect them.

In Japan, Game Machine listed Psycho Soldier on their April 15, 1987 issue as being the seventh most-successful table arcade unit of the month.

Your Sinclair awarded it 8 out of 10, praising the smooth sprite movement and well-tried formula gameplay, but lamenting the monochrome graphics and weak sound effects.

Both Athena and Sie Kensou were also noted for being one of the first video game characters to have their own theme songs (which The King of Fighters would remix multiple times across its titles).

Ultimate as a background character in the King of Fighters stage, which was released alongside Terry Bogard from Fatal Fury in November 2019.