A (slightly modified) Virtual Boy was featured in the manga “AI GA TOMARANAI!” (aka “A.I. Love You”, from the same author for Love Hina and Negima) in chapters 33, 34 and 39. The following link to MangaFox goes straight to the page that first shows the Virtual Boy: http://www.mangafox.com/manga/ai_ga_tomaranai/v05/c033/7.html