UFO Robot Grendizer Yūfō Robo Gurendaizā), also known as Force Five: Grendizer in the United States is a Japanese Super Robot anime television series and manga created by manga artist Go Nagai. It is the third entry in the Mazinger trilogy. Toei Doga and Dynamic Planning produced the anime television series and broadcast on Fuji TV from October 5, 1975, to February 27, 1977, and lasted 74 episodes. The robot's first appearance in the United States was as a part of the Shogun Warriors line of super robot toys imported in the late 1970s by Mattel, then in Jim Terry's Force Five series, both under the title Grendizer. It was widely popular in the Middle East, France, French-speaking Canada, and Italy.