The Message Box is essentially a dialog box that displays text. They can be displayed either through the interaction between the Player and a Scroll or Sign, or can be displayed programmatically through robotic. Message Boxes created through robotic can also display options, which can be selected by scrolling down to them and hitting enter, which makes it easy to create shops driven by the Message Box.
. "@string" - The message box will display the name of the calling robot as a title when it's drawn.