The Quadcopter with blue frame is traveling in a circle.

The Quadcopter with green frame is traveling in a sin curve.

Fly the Quadcopter with red frame with keyboard! w for up, s for down, a for left, d for right.

Press the button to reset the Quadcopter to the lower right of the canvas Reset

Note: the Quadcopter won't move further if reach the border of the canvas

The quadcopter with yellow fram is moving objects between left and right stacks.

Other articulated objects: When the quadcopter finish moving the current object, the object to be moved next will have the inner cross spining.