Psycho Soldier (サイコソルジャー, Saiko Sorujā) is an action arcade game developed by Japanese software company SNK that was originally released in 1986 and internationally in 1987. It is a spiritual sequel to the Athena game released a year earlier. Psycho Soldier continues the adventures of Athena, and is noteworthy for being the first video game with a vocal in-game soundtrack. Ocean Software on their Imagine label released home computer versions of the game for the ZX Spectrum, Commodore 64 and Amstrad in 1987. __TOC__