- Buddi can be the phone's home screen. Choose it as the launcher in the phone's
  settings and the home button lands on Buddi: the voice in the middle, and only
  the apps you allowed around it. You pick those from the phone's own list, on
  the phone or on the web.
- Buddi's mouth moves when it talks, and its face changes with what it is
  saying — in the live conversation and in text chat.
- One score. Coins from games are kept on the server and decided there, so the
  phone and the browser show the same total and a device cannot invent points.
- Saying goodbye ends the conversation, asking for a game opens the games, and
  asking for a parent reaches them — but only when both of you meant it, so a
  "bye" inside a story does not close the screen.