Smiley World Island Challenge is a puzzle-adventure game for the Nintendo DS. Players navigate through a series of colorful island-themed mini-games filled with smiley faces. The objective is to complete challenges and solve puzzles to progress. The game incorporates logic, reflex, and strategy elements within its mini-games, offering a variety of tasks from mazes to matching games. Designed with a bright and cheerful aesthetic, it's aimed at younger audiences or anyone seeking casual, lighthearted fun. The game belongs to the puzzle and casual gaming genre.