Like Clockwork

We loved this amazing game. You wind up Santa and the reindeer and they are released at the same time. The winner is the one who gets to the middle first.

We were wondering whether anyone will know what clockwork is in the future. Winding the mechanism fills the elastic energy store of the spring by the mechanical working pathway. As the spring unwinds, it itself does mechanical work to turn a crank that turns the legs, filling their kinetic energy store. There must be something eccentric on the crank to make the feet go round in a full circle, probably something like the pedals on a bicycle but driven by the spring. Like pedals so that when one is up, the other is down.