Gameboy color moving with steam engine

Gameboy color is moving with electricity generated by the steam engine. I feel that it is faster and cheaper to buy batteries obediently.

Details are as follows.YouTube - Steam Powered Gameboy

This steam engine seems to be able to supply the necessary 3 VDC electric power to move the game boy color. However, as you can see in the movie, the steam engine is very loud and not a game.

Although this steam engine, Jensen Steam Engine seems to be said, it seems that it can be purchased at the following site. Who will buy ...?

Jensen Steam Engine's only concession to high technology !!!!