Sequence Memory Test

How to play the sequence memory test

1. Watch the four pads: one lights up and plays its note, then the sequence replays from the start with one new pad added each round.
2. Repeat the pattern by tapping the pads in the same order. Each pad always plays the same note — the melody is half the memory.
3. The playback speeds up as you get deeper, after the 5th and the 13th signal, exactly like the 1978 toy it honors.
4. In Classic, one wrong pad ends the run with the razz — your best streak is saved on this device. In Practice a miss just replays the sequence, so it's the mode to learn on.
5. Don't chase colors alone: say the pattern to yourself, chunk it in threes, and let the tune do the remembering. Most adults slip around 8 — 12 and up is bragging territory.

A little background

The watch-and-repeat game is pure 1978: Simon, the black disc with four glowing lenses, invented by Ralph Baer and Howard Morrison for Milton Bradley and launched at Studio 54 of all places. Baer picked the four notes from a bugle's harmony — they form a major chord, so whatever order the toy dealt could never sound sour. Get one wrong, or think too long, and it blasted the "razz", a rude 42-hertz raspberry. Survive 31 signals and the manual promised the machine would "blow its mind" and razz itself instead. This version keeps all of that — the quadrant layout, the harmonized notes an octave down, the razz, the exact tempo steps measured from surviving units — and skips the batteries.

It also does what the toy never could: an endless sequence instead of a 31-signal ceiling, a practice mode that forgives, and a live two-phone duel where both players face the identical pattern and the longer streak takes the round. Free, no ads, no account — solo play works offline once loaded.