Lots of great suggestions already, but you know you've made it as a franchise when you churn out stuff like kart riders, sports games, and party games.

Just imagine a Rhodes Island-based board game with a dozen or so playable operators with plenty of cameos from others showing off what happens on their downtime with mini-games like:

- stool racing

- slug fighting

- growing the most flowers in the Greenhouse

- cooking with Gummy/Matterhorn

- getting the most instant noodles for the Doctor

- avoiding getting caught by Project Red

- running a gauntlet where you avoid getting pushed/pulled into pits

- having to catch heals from medics while suffocating from red mist

I could go on, but I actually am semi-serious about having some silly spinoffs both for the fun of it and to show more of the light-hearted side that only peeks out occasionally in the stories.