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In the NPC's lines, we use *asterisks 
( * ) to break up the line into sections. During the game, when the player hits the button the PC will interrupt with a response, which will change based on which section of the NPC's line was playing when the button was pressed.
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That about covers all the features. You may wish to view our Known issues Issues with applicationsApplications page to avoid some common bugs. Have fun making your game!
(The dialogue used here for Dr. Nefarious and Agent 008 is adapted and simplified from a sample game written for testing purposes. If you'd like to read the full script, click here.)