To defeat the Nano Challenge, one needs speed and precision.

Unfortunately neither of these qualities are found in plenty amongst our colleagues- but this doesn't stop us from playing the infuriatingly addictive game morning, noon and night.

As a result we are all now of course always mentally alert and ready for any challenge. A good memory in this game, as in life itself, is key. Perfect for sharpening wits and honing concentration, the Nano Challenge is an addictive memory testing game. The aim is to remember and repeat the sequence of highlighted buttons.

But as the timer speeds up, the lights flash faster and it gets harder and harder to keep up. So go forth and memorise, but be warned you will be memorising for a long long time.

Nano Challenge features:

• Nano Challenge is the new updated and electronic version of the old "Simon Says..." game
• Can you follow the sequence?
• Generates a new game every time.
• Pocket sized game.
• Keychain included.