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Overview

Sequence Memory

1 player · 1-5 min per session

Remember the pattern and reproduce it exactly. Clear every round of the selected difficulty to finish the run.

Players: 1P Session length: 1-5 min

MemoryAction

Goal & Core Rules

Remember the pattern and reproduce it exactly. Clear every round of the selected difficulty to finish the run.

The game shows a light-and-sound pattern on four pads. When playback ends, tap the same pads in the same order.
Each round starts from the beginning of the pattern again. If the round length is 5, you must enter all 5 steps, not just the newest one.
Every cleared round adds one more step. Easy ends at 6 rounds, Normal at 8, Hard at 10, and Expert at 12.
One wrong tap ends the run immediately. There is no partial credit or retry inside the same round.
This build focuses on memory, not a response timer: harder modes flash faster, but there is no separate input countdown once your turn begins.

Current implementation: classic forward repeat

This page uses a clean solo format with four pads in a fixed 2x2 layout. The sequence always grows by one step, you always repeat it in the same forward order, and one mistake ends the run. The only difficulty changes are total rounds and playback speed: Easy is 6 rounds, Normal 8, Hard 10, and Expert 12.

Common rule family: strict response pressure

Many Simon-style toys and arcade versions also pressure you with a short answer window. In those versions, even remembering the pattern is not enough if you hesitate too long. This build removes that extra countdown, so the tension comes from recall and composure rather than racing an invisible timer.

Common rule family: reverse, rewind, or shifting patterns

Some later releases ask you to replay the pattern backward, follow colors that change position, or react to pads whose role moves around. Those variants test rule-switching as much as memory. Here, the board never remaps: you watch a fixed layout and replay the exact forward order you just saw.

Common rule family: multiplayer or party play

Some sequence-memory games are built for head-to-head speed, pass-the-device play, or players taking turns extending the pattern themselves. This build is strictly single-player. The game creates the full sequence for you, and your job is simply to survive every round without a miss.

Controls

Mouse

Click a pad after the playback ends to enter the next step.
During playback, the pads are locked, so watch first and press only when the game asks you to repeat the pattern.
Use the top menu to restart, choose a new difficulty, or open help.

Keyboard

There are currently no dedicated keyboard shortcuts.

Touch

Tap a pad after the playback ends to enter the next step.
During playback, wait and watch. The pads only accept input in the repeat phase.
Use the top menu to restart, change difficulty, or open help.

Beginner Tips

Give each pad a simple label in your head: top-left, top-right, bottom-left, bottom-right, or your own color words.
Let the whole playback finish before you move. A calm repeat is safer than rushing the first tap.
On longer rounds, break the pattern into small chunks such as 2+2+2 instead of treating it as one long string.

Advanced Tips

Anchor the start and the finish. Remembering the first two and last two steps makes the middle easier to rebuild.
Use rhythm as well as position. Many players keep long sequences better when they hear the pattern as small beats.
If Hard or Expert feels messy, keep your eyes returning to the same four pad positions every round instead of scanning randomly.

Origins & History

Modern sequence-memory games are most closely linked to Simon, the 1978 electronic toy by Ralph H. Baer and Howard J. Morrison. Wikipedia and IEEE Spectrum both note that its creators were reacting to Atari's earlier Touch Me and kept the same watch-remember-repeat idea while improving the colors and sounds. Simon's success turned that format into a long-running pop-culture memory challenge, and many browser and mobile versions still follow the same basic template today.

Timeline

1974 Atari released Touch Me, an early light-and-sound pattern game that established the basic repeat-the-sequence idea.
1976 Ralph H. Baer and Howard J. Morrison saw Touch Me at the MOA trade show and began designing a friendlier home version, first called Follow Me.
1978 Milton Bradley launched Simon, whose four colored pads and musical tones made sequence-memory play a holiday hit.
1979 Super Simon expanded the idea into a faster head-to-head format, showing that the concept could support more than one play style.
1980 Pocket Simon helped carry the format into smaller handheld play, and later versions kept the pattern-memory formula active for new generations.

Notable People

Ralph H. Baer Co-created Simon after spotting potential in Atari's earlier Touch Me concept.
Howard J. Morrison Co-created Simon and helped shape the toy into a more inviting, mass-market memory game.
Lenny Cope Programmed the early Simon hardware and helped turn the idea into a working electronic game.

Trivia

The working title was Follow Me before Milton Bradley renamed the toy Simon.
Baer chose tones that sounded musical together, a direct response to the harsher sound of Touch Me.
Later official versions experimented with reverse play, swipes, motion controls, and linked multiplayer sets.

Sources

FAQ

What changes between Easy, Normal, Hard, and Expert?

The rules stay the same, but the run gets longer and the playback gets faster. Easy is 6 rounds, Normal 8, Hard 10, and Expert 12.

Do I repeat only the newest light each round?

No. Every round expects the full pattern from step one through the newest step.

Is this using the strict timer-heavy Simon rules?

Not exactly. It keeps the classic one-mistake fail structure, but it does not add a separate input countdown, reverse-order tasks, or shifting pad roles.

Can I play on phone?

Yes. The game is built around four large pads, so mobile play is simply tapping the pattern back after the playback finishes.

Are there keyboard shortcuts?

Not currently. Use mouse or touch, plus the top menu for restart, help, and difficulty changes.