An electronic game that made the scene in 1978 and was very popular. I found one that was not working because the batteries were very corroded inside the game.
I cleaned it and it works like new! I always loved that game and don't like the way new ones are made.
"Simon: Created by Ralph Baer & Howard J. Morrison, Simon takes its name from the children’s game Simon Says. The gameplay is based on a coin-op arcade game produced by Atari in 1974 called Touch Me. In Touch Me, a series of four lighted buttons blink in a certain sequence, and the player must then push the buttons in the same sequence. The arcade game was not particularly popular. Ralph felt this game had much more potential and set off to create his own version. Ralph incorporated musical notes & colored lights. Simon was released in 1978 by Milton Bradley, and was one of the hottest selling games of the 1978 Christmas season."
https://www.classicarcademuseum.org/ralph-baer