Ninja Murasaki™ Known as "The Messenger of Death," only a small number of challengers have laid eyes on Ninja Murasaki and lived to tell the tale. He moves in shadow, and strikes without warning. As the third floor guard of Muscle Tower, he poses a deadly threat to any intruder wishing to reach the top. Appearances 36 . Major Metallitron 37 . Ninja Murasaki is Coming! 38 . Five Murasakis 39 . Mysterious Android No. 8 42 . The Secret of Dr. Flappe 43 . A Trip to the City