Description: [Xbox Live Arcade] Experience Ion Assault, an action-packed arcade-style space adventure with an unprecedented particle physics engine. Fight alone or cooperatively through four different modes and more than 20 exciting levels. Instead of conventional weapons, use the free energy particles that are abundant in space to fend off swarms of aliens. Space adventure: Battle aliens with a unique fluid and particle system. Variety of play: Explore more than 20 levels in four diverse settings with lavish graphics. Upgrades: Earn upgrades for your spaceships, such as augmented speed or increased radius for collecting surrounding particles. Multiplayer action: Enjoy various multiplayer modes like Cooperative, Arena, or Harvest with up to four players. Power-ups: Collect special power-ups, usable for a limited time, such as Black Hole. International flavor: Ion Assault is the first Xbox LIVE Arcade game developed in Germany. [RTL]