Cyber K'NEX:

Cyber K'NEX is a new range of robots, dogs and racing cars which react to their surroundings using light, motion, infra-red and sound sensors, making independent decisions about their next actions! Each model is programmed using a Cyber Key, which gives its own distinctive character and brings it to life. Their movements can all be triggered by standard TV or stereo remote control units. At the top of the range, the Ultra set has its own programmable controller that allows children to trigger the models to act out different responses.

For example, Woof, the Cyber K'NEX dog, can detect when an intruder walks into a room and will ward them off by growling and snarling, while Mectron, the Cyber K'NEX robot will respond by speaking and flashing his lights or firing missiles from the rocket launcher in his chest.

Each Cyber K'NEX set can build at least three models, all with their own character determined by the Cyber Key which is simply plugged into the back of the model. Cyber Keys can be interchanged with each model that is made from the set and with the Ultra set, additional "personalities" may be downloaded from the K'NEX website