|This article is about a/an monster in Choujin Sentai Jetman.|
Majin Mu (魔神ムー Majin Mū?) (30): A servant of Ramon and Gorg, Mu was put to sleep along with his two masters since Taiko era. Accidentally released from his urn by two lost travelers, Mu goes to find an ideal warrior to use in a blood sacrifice to free his masters. Arriving to the scene of the Jetman's fight with Radigam, Mu attacks them to pick out a suitable sacrifice and abducts Kaori to begin the ritual. However, the Jetman intervene and battle Mu as they use the Fire Bazooka on him which he endured. Finding his masters revived, Mu was killed by Gorg for being useless.