Nichibutsu Arcade Classics 2: Heiankyo Alien is a single-player and multiplayer action game in which players control characters tasked with defending their territory from invading aliens, utilizing strategic placement and quick reflexes. In this game, set in a stylized version of ancient Japan, players navigate through various levels to prevent aliens from destroying their city, with the original Heiankyo Alien included as a core component. It stands out with its combination of classic arcade gameplay and modernized graphics, offering both nostalgic appeal and enhanced gameplay features, including multiplayer modes and new challenges.