Densetsu no Stafy 4 (伝説のスタフィー4 Densetsu no Sutafī Fō?) is a platform video game developed by Tose Co., Ltd. and published by Nintendo for the Nintendo DS. It is the fourth game in the The Legendary Starfy series, which first started on the Game Boy Advance. As with the other games in the series, Densetsu no Stafy 4 features Stafy, known as Starfy in Western regions, as the main character. He is joined by his sister Starly and his friend Moe the clam. The three of them help out other undersea creatures and fights numerous villains.