In the fourth game, Addison and Popo are each tied to bags of poison. They are asked a series of questions and for every lie someone spews, the poison is injected into them. Addison realises that only one person can survive this game and she starts lying to harm herself, in an attempt to save Popo. But Popo does the same to let Addison win, causing the poison to be injected into Popo's blood...