C-Island

C-Island is the main location in the Nintendo Entertainment System video game StarTropics. Naturally it is in the shape of the letter "C". C-Island is the overworld of the game that contains various towns and dungeons (similar to The Legend of Zelda's Hyrule). The natives on the island will explain to the main character, Mike Jones, that his uncle has gone missing on the island in the beginning of the game.