Sailor Pluto and her transformation is not shown on screen. She wields the Garnet Rod, a gigantic key which is topped by the Garnet Orb and a heart. The orb is one of three items necessary for Sailor Saturn's awakening and a reference to one of Japan's Imperial Regalia: the jewel. The reason for garnet specifically being associated with Sailor Pluto is probably due to an elaborate pun regarding her underworld-based powers and mythology. The Japanese name for garnet is "pomegranate stone" and pomegranates were the food of the underworld in the Greek myth of Persephone becoming Hades' (aka Pluto's) wife. Therefore
The Adventures of Pluto Nash has killed both Marucci and Runa and established his own criminal enterprise. He also states that he was the one who told his henchmen where Pluto was hiding out due to him also inheriting Pluto's memories. When his henchmen arrive and see both Rex and Pluto, Rex kills Mogan and Kelp for their incompetence. He and Pluto then fight while the others are uncertain which is which. Pluto shoots Bruno, and Belcher (who assumes that Pluto would not damage his own robot) shoots Rex. Pluto orders his men to leave and reveals his identity to Dina by speaking of her