Sun Vulcan Robo (サンバルカンロボ San Barukan Robo) - The first combining Sentai robot, and also the first to "talk" in the form of shouting attack techniques. Cosmo Vulcan and Bull Vulcan combine when the command "Fusion! Grand Cross!" (合体グランドクロス Gattai Gurando Kurosu) is given. It is armed with the Solar Sword (太陽剣 Taiyō Ken) and its finishing attack to destroy monsters is the Aurora Plasma Return (オーロラプラズマ返し Ōrora Purazuma Kaeshi). Its other weapons are the Vul Shield (バルシールド Baru Shīrudo), Vul Tonfa (バルトンファ Baru Tonfa), Vul Hand (バルハンド Baru Hando), Vulcan Sun (バルカンサン Barukan San), and Vulcan Cannons (バルカン砲 Barukan Jū).