Review their documents. Review their humanity.
Borderline Intelligence is a game about reviewing papers and checking one's identity. A blend of "Papers, Please" and "That's not my neighbor".
You must check every individual's documents to see if they are valid. You must question every individual to prove their humanity. With the integration of Player2's AI API, you will have to talk and outwit each individual to see whether they are "Human" or "AI".
But wait- there's more.
Each AI you face has a possibility of gaining memories of previous AI. They learn, they adapt, and they may eventually outsmart you.
Survive 31 days as the border officer, or ??? when you run out of COINS and fail to pay.
Good luck, Officer.
Y O U ' L L N E E D I T .