A more powerful mecha used by the Zaboom army. They are often call Boss. They are equipped jumonji type yari and are significantly larger than the Shadow Bots at 10 m (33 ft) tall. They are the ones that generally trouble the Ninja Robot Riders . In the begining of the series , Joe generally was unable to defeat multiple Stealth Destroyers alone , so Cybertron used to combine with Black Lion to defeat them.