Run 3 at run3.app introduces mystery levels filled with hidden pathways, unique obstacles, and special rewards. These levels are unlocked as players reach specific milestones, offering a more challenging and mysterious experience. Each mystery level has its distinct theme, from alien landscapes to cosmic ruins, creating an adventurous atmosphere. Run 3’s mystery levels encourage players to explore every corner and unlock hidden treasures, making the game feel like a journey through uncharted space. https://run3.app/