Chromecast’s new mirroring feature lets users pull up an Android phone screen onto a TV. And why would you want to put your little screen on your bigger screen? If game maker Rolocule has its way, to play Nintendo Wii-like games without bothering with a console. Rolocule has introduced its Motion Tennis to the Googlesphere. The team’s demo works on the Chromecast by using the new mirroring capability announced at Google I/O, and it plans to launch a public beta in the near future. A Chromecast dongle is considerably cheaper than a gaming console, so if Rolocule can fix the lag issue it has with the demo, this could be a very affordable way to play gesture-based games.