Marble Blast Ultra is an online multiplayer arcade action masterpiece with stay-up-all-night gameplay and a level of visual polish that can only be found on Xbox 360. Suitable for players of any age, the game takes place in a futuristic 'astrolab' arena suspended high in the clouds where players compete against each other by navigating their marbles through moving platforms and dangerous hazards, while collecting rare gems and power-up enhancements, in an effort to complete each course in record time.