It'S not a video game, it has nothing to do with video. It's just an analog computer game, that's all. No video involved. And computer games are in fact probably even older, even digital ones.
If there is no video involved, please explain the images I see there. Video simply means a visual display. 'Video' is a latin word, the first person singular present tense of the verb videre, 'to see'. Even an array of LEDs would qualify (as they did in some 80's handheld games). Its an animated display of a computer game. Therefore, its a video game. If you disqualify this based on a vector display, then you've just knocked out Asteroids as a video game. If you disqualify it because its analog, you've just knocked out Pong as a video game.