101-in-1 Sports Megamix for Nintendo DS is a sports-themed compilation game catering to players who enjoy variety and quick gameplay sessions. The title aptly describes the content, offering a vast collection of 101 mini-games that cover a wide range of sports and activities. From conventional sports like soccer, basketball, and tennis to more offbeat and quirky challenges, this game packs an array of engaging experiences. Each sport presents simplified mechanics designed for the DS's handheld format, making it accessible for all ages. The game's genre is best described as sports action with simulation elements.