Party Mode is a feature in Powerline.io. It allows people who know each other to play in the same session. This can be done by pressing the Copy Room Link button at the top left corner of the screen in the main menu, then sharing the link with others. When others type the link in their address bar, they can play in the same session. The link always appears as "http://powerline.io" followed by a forward slash and pound sign ("/#") and then a four character combination of letters and numbers (such as "1w7g" or "2wjw"). An example of a full link would be "http://powerline.io/#1wjw".