Block Guys, giant walking war machines built from colored blocks, are marching on your base. Slide their blocks with the mouse, line up three or more of a color to clear them, and drop the Bloquians riding on top to the ground. Call in fire from your base and pop PSI balloons for special powers.
One day, without warning, the Bloquians began their invasion of Earth. Their weapons are Block Guys: giant two-legged war machines built from colored blocks, marching on your base one after another with Bloquians riding on top.
Slide the blocks of a Block Guy's body with the mouse, and line up three or more blocks of the same color, vertically or horizontally, to clear them. A moving block pushes the others aside, and can travel as far as the blocks it touches reach. Clear the blocks out from under the Bloquians and drop every one of them to the ground to clear the stage. If your base's endurance runs out, or a Block Guy reaches it, the stage is failed.