Ristin's Campaign Construction Center
This idea is at least ten years old now.
The basic plan is a fairly cartoon-like game in which the players are various animals that could be found around a zoo. So some would be exhibits and some would be wildlife.
The basic genre of “all the animals understand one another and have a secret world of their own that humans usually don’t see”.
Classic cartoons like Shirt Tales, Chip and Dale Rescue Rangers, The Rescuers, The Rats of Nihm, Watership Downs, Animals of Farthing Wood, Noah’s Island, The Raccoons, and many many more. Also more modern ones like the Madagascar series of movies, The Nut Job, and Ratatouille.
With any luck I don’t need to try to explain the sort of adventures, schemes and hi-jinx involved in this genre?