After clearing Bad-Mouth Sugoroku, Yuichi and Tenji find themselves trapped in a dark cave for three days. During their isolation, Tenji makes the shocking revelation that he had already experienced a Tomodachi Game in the past. Meanwhile, a team of new opponents lies in wait outside, anxious to challenge the two partners to a grueling third game.
It will test your true friendship
 precisely because you have opponents.
.ستختبر صداقتكم الحقيقيّة بالضّبط لأنّ لديكم خصوم
Testerà la vera amicizia proprio
perché ci sono avversari.
Isto testa a sua verdadeira
amizade porque terão oponentes.
И ничто не проверяет дружбу лучше,
чем общий противник.