This can be an ironing board with a sheet draped over it, the back of a couch, whatever. The dimensions, height, and such don't matter. There need to be crude stick puppets for the principal characters, which the Cartoonist constructs in advance by cutting out character images and taping popsicle sticks to the back. There should be scissors, some sort of drawing instrument, and ready supplies of tape, popsicle sticks, and paper handy during the game, as the Cartoonist makes new puppets whenever miscellaneous characters are introduced. Before play, each player writes two Deus ex Machina on slips of paper, folds them, and puts them a container of some sort.
Players then ready their puppets and get the first scene started.
Characters enter and exit the scene as desired, and the scene pretty much continues until it's done, then another scene is started. I've written a short example of game play. Anyone may make a Pun call in response to a player other than Robert or the Cartoonist making a pun. If the referee rules that a pun was in fact made, the player is penalized by having to live with the consequences of that pun for the rest of the game. The Cartoonist decides what these consequences are, and as with all Cartoonist decisions the ruling doesn't particularly have to be impartial or fair.