Amagon, also known as Tropical Hero in Japan, is an action-adventure game developed by Aicom for the Nintendo Entertainment System (NES). Released in 1988, the player controls a marine named Amagon who becomes stranded on an unexplored tropical island. The gameplay includes platform jumping, enemy dodging, and shooting, with a special feature that allows Amagon to transform into a giant muscular, superhero figure called Megagon for more powerful attacks. The game is notorious for its high difficulty level and it's known for its 8-bit graphics and retro action gaming style.