This game – called simply “X” – was a Japan-only release, in 1992, on the original black and white Game Boy, but its conception and development would later have a profound effect on Nintendo‘s confidence in producing 3D-based games.
X was created by British developer Argonaut Software (specifically, by Dylan Cuthbert, who was later infamously ‘poached’ by Nintendo from Argonaut), and was a demonstration of their ability to produce 3D-based games on home video game systems. This impressed Nintendo, who then tasked Argonaut with creating a new 3D game on their Super Nintendo console, which eventually became the classic Star Fox. And the rest is history… Sort of.