Inkwell Isles is a fictional archipelago featured in the popular video game Cuphead. The islands are known for their vibrant, hand-drawn art style, reminiscent of 1930s cartoons. Players explore various islands, each with unique themes and challenges, while battling a variety of whimsical and often challenging bosses. The main characters, Cuphead and Mugman, embark on a quest to repay a debt to the Devil. Throughout their journey, they encounter diverse environments, including lush forests, treacherous mountains, and eerie ghost towns. The game combines platforming elements with intense boss battles, making it a distinctive experience in the gaming world.