In the second and third Papa Louie platformer games, he's imprisoned alongside a number of his employees and customers, prompting the remaining of them to rescue him at the endgame and midgame, respectively.
Due to the topping palette in the game's mobile ports being too large to fit within a single order, Papa's order was simplified considerably for them. All Your Powers Combined: He's the only costumer in the original Flash version of Pizzeria to order all the toppings available, giving him the most complex order in the game overall.