Nintendo Switch and Switch 2 are getting an official Virtual Boy accessory that Switch Online subscribers can slot their consoles into to play classic 3D games like Mario's Tennis.Released in 1995, Nintendo's Virtual Boy was the first standalone home stereoscopic 3D gaming system, providing a 384×224 red-only monochrome image to each eye via the two lenses. While often described as a "VR headset", Virtual Boy lacked any kind of head tracking, not even rotational, and had a narrow field of view. That's not to say it wasn't an interesting 3D console - it just wasn't really VR.Now, 30 years later, Nintendo just announced a Virtual Boy accessory for Switch and Switch 2, featuring a similar design to the original but lacking screens and compute. 0:00 /1:15 1× Instead, you'll slot your Switch console into the front, as you might have done with your phone with a Samsung Gear VR or Google Daydream a decade ago. The Switch console will run the games, while the accessory provides the lenses and structure.A cheaper cardboard model will also be available, which looks to be somewhat reminiscent of Nintendo Labo VR, which supports the original Switch but not Switch 2.No price or release date has yet been announced for the Nintendo Switch Virtual Boy accessories, but Nintendo says the games will be available to Nintendo Switch Online subscribers, with the first arriving on February 17.The Virtual Boy accessories will be exclusively available in the US and Canada.A total of 14 Virtual Boy games will be available "over time", Nintendo says, including Mario Tennis and 3D Tetris.Nintendo Switch Online is priced at $4/month, and also offers online multiplayer, cloud saves, voice chat, and other Nintendo Classics.