King of the Monsters brings classic Japanese giant monster (Kaiju) movies to the world of fighting and professional wrestling. Players control one of six colossal creatures — including Geon (a Godzilla clone) and Woo (a giant gorilla) — battling in fully destructible Japanese metropolitan areas. The gameplay combines traditional strikes with wrestling clinches, throws, and pins, requiring a three-count to win. The urban environment is highly interactive: monsters can step on buildings, crush military tanks, and use helicopters or power lines as improvised weapons. The AES cartridge is an affordable and nostalgic collector's piece of retro destruction, perfect for quick play sessions.