This is a short video clip of me playing V Tetris on the Nintendo Virtual Boy retro 3D video games console.
Obviously, as the camera can only point into one of the two eyepieces, you will not experience the excellent 3D effect in this video.
Published by Bullet-Proof Software in 1995.
V-Tetris, which should not be confused with the completely different game - 3D Tetris, which was a Japanese only release.
As the video shows, it's largely just a bog standard version of Tetris, with a few minor 3D effects, like the starfield background.
Aparrently there is a mode, called C Mode, which is exclusive to the Virtual Boy, and features a 3D spiral playfield. I haven't actually tried this yet, so can't comment further.
This and the other retro gaming clips on this site aren't intended as full game reviews, but are simply to give viewers who weren't around when these games were popular, an idea of what video games used to be like