In order to establish this type of game, I needed to implement the ability to run a dialogue script. A dialogue script, in this instance, is simply an array that a player progresses through as it unfolds on the screen with two profile pictures and some text.
The structure of each dialogue element is basically: entity name, entity dialogue, frame to show on the left, who is talking (left or right), frame to show on the right. The importance of "who is talking" dims the non-active entity. The game takes a 2D array of all of these dialogue elements and just plays them out in order. Once it reaches the end, the overlay is closed.
You'll also notice on the top of the screen is a status bar. I'll probably use this for adventure specific elements, like the number of keys you have or found inventory items.
I'm thinking the next game will use Ritz the Robot from Robot in the City (a comic I did a long time ago). He needs some attention.