In the 1970s, Japanese toymaker Popy (owned by the larger Bandai) created a line of die-cast toys based on the popular Super Robot anime series of the period. The line was named Chogokin, meaning "Super Alloy", that futuristic metal robot Mazinger Z was said to be made of. The weighty toys were meant to give kids a sense of heftiness of robots in the cartoons. In a similar manner, Popy's other line was Jumbo Machinder (known in the West as Shogun Warriors) whose metal make-up gave children the idea that their toys were made of the same stuff as the "real" robots. The line proved popular, with some figures imported to the west. In the late nineties, Bandai created the Soul of Chogokin line of adult collector figures featuring metal parts, as a callback to the original Chogokin toys, and then the smaller but similar Super Robot Chogokin line.