He also received inspiration from anime. His early works, particularly the cyberpunk adventure game "Snatcher" (which uses anime-style art), were influenced by cyberpunk anime, most notably "Akira" (mentioned above). In an interview, he mentioned that his "Zone of the Enders" series was inspired by mecha/robot anime, such as "Neon Genesis Evangelion". Mecha anime was also an inspiration for the "Metal Gear" series, which features mecha robots, such as Metal Gear REX and Metal Gear RAY; this is referenced in "Metal Gear Solid", where Otacon mentions mecha anime as an influence on his Metal Gear REX designs.