In the early 1990s, director and producer Shigeru Miyamoto conceived a 3D "Mario" design during development of the Super Nintendo Entertainment System (SNES) game "Star Fox" (1993). He considered using the Super FX chip to develop a SNES game, "Super Mario FX", with gameplay based on "an entire world in miniature, like miniature trains". He eventually reformulated the idea for the Nintendo 64, not for its substantially greater power, but because its controller has more buttons for gameplay. According to engineer Dylan Cuthbert, who worked on "Star Fox", no game titled "Super Mario FX" had ever entered development, but rather "Super Mario FX" was the code name of the Super FX chip.