This is a short guide I give to people I give access to an XMoto private room.
In the game, choose Options → WWW → Room 2 (I recommend leaving WR as the Reference room), activate the checkbox, select the room and input your credentials. Hit “Upload all highscores” to do a bulk upload.
Immediately after playing a level, you can hit “Upload” if you beat the current high score.
© 2011 Johan Kiviniemi
The image of a giraffe is from Wikimedia Commons