Spazer is a fictional support craft from UFO Robo Grendizer, serving as Duke Fleed’s main flight and combat vehicle. It is not a humanoid character but a transforming space mecha that acts as Grendizer’s aerial partner and docking ship. Spazer’s role in the series is to enable Grendizer to fly, maneuver in space, and launch powerful attacks while combining with the robot. It is an iconic part of the hero’s arsenal and a key element of the show’s battles.