Lightning Sky (Lightning Skyer in Japan) robos are the masters of the sky. They have appeared in Custom Robo GX, Custom Robo (GameCube), and Custom Robo Arena. They have a single long air-dash that is known as a Sky Dash, generally low defense and speed, but very high aerial capabilities. Their air-dashes allows them to fly horizontally and attack while doing so. Think of them as Aerial Glass Cannons. As such, many users of Lightning Sky robos opt for aerial based sets whenever using them.