Those of us born before 1980 may recall the popular electronic game "Simon", that required the use to remember and repeat an ever-increasing sequence of button presses played by the device. It's a fun way to exercise the memory, and can also be easily recreated using an Arduino. Another version of this has been demonstrated by reddit user 'elbow-room' whose sketch is well documented and easy to work with.
This would also be a great project to build onto a protoshield, so you could just place it on the board and upload he sketch when you get the urge to play the game. The sketch is available here. And for more, we're on twitter and Google+, so follow us for news and product updates as well.
If you've heard about this "Arduino thing" - but not sure how to start - then the best way to learn is with our Experimenter's Kit for Arduino:
The package includes a wide variety of parts, sensors and modules including: a servo motor, lights, buttons, switches, sound, sensors, breadboard, wires and more. Furthermore a Freetronics Eleven Arduino-compatible board is included to make this an extensive hobby experimenter, inventor and starter kit. However we don't leave you alone to figure it all out, included is a great project and instruction booklet, plus access to a supporting web page and software examples. In other words - this is everything you need to get started for a fun range of electronics and Arduino related projects!
So to get started or for more information and to order, check out the product page.