Circulate spheres around 120 levels by spinning each level left and right. Levels contain a variety of over 20 sphere types which can be controlled, collected or destroyed, depending on the level s objectives. Circulate is easy to pick up and play. The left mouse button activates the various sphere types, the right button rotates the level. Features 120 unique levels, 5 level themes and 20+ sphere and object types. Great visual effects and 40+ sound effects. Comes with a 30 day money back guarantee.