A computer-implemented method of using a scene data structure to display a game tutorial on a display, including accessing a scene data structure, the scene data structure having a plurality of display data elements, each associated with a respective data element identifier, the display data elements containing display data for displaying game elements on the display in a game scene; accessing tutorial data, the tutorial data comprising a tutorial data element identifier; searching the scene data structure for a data element associated with the tutorial data element identifier, that data element containing display data for displaying a respective game element; generating highlighting data using the results of the searching step, the highlighting data for highlighting the respective game element on the display; and displaying the respective game element as a highlighted game element on the display in a tutorial scene using the generated highlighting data. Devices and systems are disclosed.