[11] According to his Nintendo and Koto colleague Yoshihiro Taki, Yokoi had originally decided to retire at age 50 to do as he pleased but had simply delayed it.Leaving with several of his subordinates to form a new company called Koto, Yokoi led the development of the Bandai WonderSwan handheld game console.[19] The Wii's internal technology was similar to that of Nintendo's previous home console, the GameCube, and was not as advanced in terms of computational capability and multimedia versatility compared to its competitors: the Xbox 360 and PlayStation 3.This strategy demonstrated Nintendo's belief that graphical advancement isn't the only way to make progress in gaming technology; indeed, after the Wii's overwhelming success, Sony and Microsoft released their own motion control peripherals.[20] On 4 October 1997, Yokoi was riding in a car driven by his associate Etsuo Kiso on the Hokuriku Expressway, when the vehicle rear-ended a truck.[8] The title of his main biography from 2010 translates from Japanese as Father of Games – Gunpei Yokoi, the Man Who Created Nintendo's DNA.[30] In 1999, Bandai began releasing a series of handheld puzzle games named Gunpey as a tribute to their original creator, Yokoi.