Simon Says is the Most famous game.

The device has four colored buttons, each producing a particular tone when it is pressed or activated by the device. A round in the game consists of the device lighting up one or more buttons in a random order, after which the player must reproduce that order by pressing the buttons. As the game progresses, the number of buttons to be pressed increases.

How far can you get? Watch the colors light up while listening to the notes play. Try to repeat the sequence that gets longer with each round.

The best version of the classic Simon game from the 80s, a simple yet fun memory game of colors and tunes. The 4 color memory game. Boost your brain power with this visual, auditory, and kinetic exercise!
The four color memory game.

Simon (1978-present)
Think fast! Simon says repeat my flashing LIGHTS and SOUNDS (1978-present)
Simon's a computer, Simon has a brain, you either do what Simon says or else go down the drain (1994-1998)
The Fun is in the Challenge! (1993)
Watch, Remember, Repeat! (2014-present)