To start a duel, press D or dance while wearing any Lightsaber.
A circle will appear above your penguin. This will allow another player to battle you, or you can click a circle above another penguin to duel them.
A small interface will then appear, showing 3 lightsabers facing different directions: HI, MID and LOW. Click one of them and wait until time runs out or until the other player picks an arrow. If you do not pick one and time runs out, the other player will win. If neither player picks an option, the duel results in a tie.
HI beats MID.
MID beats LOW.
LOW beats HI.
If both players click the same direction, it will be a tie.
The winner of the round gets 20 points and the loser 10, if there is a tie both get 10.