Avenging Spirit, also known as Phantasm in Japan, made its debut in arcades in 1991 and found modest success despite being an action-platformer arcade game.  It would skip all the home consoles and arrive on the Game Boy® a year later with a limited physical release in the West.  Those lucky enough to play it recognized its exciting game mechanic - possessing your enemies!  How you proceed depends on who or what you possess and control, be it a gun-toting gangster, a floating guru, a vampire, or a robot.  A young man's life was taken away by gangsters while attempting to protect his girlfriend, who was subsequently kidnapped.  With the help of her father, this little ghost must end their plans and rescue his love, Gennifer!