Nightmare Circus is a unique blend of beat'em-up, platformer, and fighting game elements, developed for the Sega Genesis/Mega Drive console. Raven, the protagonist, must put an end to the eerie Nightmare Circus that appears only on stormy nights.
The gameplay revolves around navigating through various levels inspired by a twisted circus, with an emphasis on combat and fighting against grotesque creatures. Players control Raven as he attempts to defeat the sinister forces behind the nightmarish spectacle.