About the game
Simon Says is a memory game based on the classic 1978 electronic toy. Four coloured panels flash in a sequence, and you must repeat it by clicking the panels in the correct order. Each round adds one more step to the sequence, making it progressively harder to remember.
This version adds a Hard mode where the sequence plays faster and includes repeated colours. It also features a high-score table so you can track your best performances in both modes. The game tests your working memory — the ability to hold and manipulate a growing list of items in your mind.
How to play
- Press Start to begin. Watch as the panels flash in a sequence.
- After the sequence plays, click the panels in the exact same order.
- If correct, the game adds one more step to the sequence and plays it again.
- The game ends when you make a mistake. Your score is the length of the longest sequence you completed.
Controls
| Click panel | Click or tap the coloured panel |
| Start | Start button in the menu |
Five beginner tips
1. Use verbal labels
Mentally assign a word to each colour ("red is top-left"). Saying the sequence out loud as it plays dramatically improves recall.
2. Chunk the sequence
Instead of remembering 8 individual colours, try to group them into pairs or triples. "Blue-red, blue-red, green-yellow" is easier than 8 separate items.
3. Rehearse during playback
While the sequence is playing, repeat it in your head. Don't wait until it is your turn to start remembering.
4. Normal mode first
Start with Normal mode to build your confidence. Hard mode doubles the speed and is significantly more challenging.
5. High scores are local
Your best scores are saved in your browser. They reset if you clear your browser data.
Why you'll like it
Simon Says is a pure test of memory with zero luck involved. The escalating difficulty creates a natural tension, and the satisfaction of nailing a 15-step sequence is genuinely thrilling.
Frequently asked questions
What is the difference between Normal and Hard?
Hard mode plays the sequence faster and includes repeated colours, making it significantly more challenging.
How do I switch modes?
Click the "Change Difficulty" button in the main menu.
Does it work on phones?
Yes. Tap the coloured panels to play on touch screens.
Game credit: Open-source Simon Says implementation. MIT licence by DorMizrahii.