Risotto figures out that Doppio must be a Stand user that the boss trusts in deeply because he’s able to hear the noise from a certain Stand. Risotto then uses his Stand Metallic against him. Metallic is able to control magnetic force and attacks Doppio. Doppio uses the part of the boss’s power he received from him. While they’re fighting, Risotto realizes that Doppio’s personality and actions seem to be changing and he realizes exactly who Doppio is.
despite how hard you're breathing, 
oxygen isn't entering your body.
على الرّغم من صعوبة تنفّسك، الأكسجين
لا يدخل جسدَك
dass du noch so angestrengt atmen kannst,
der Sauerstoff wird nicht weiter transportiert.
por muy fuerte que respires,
tu cuerpo no recibe oxígeno.
por muy fuerte que respires,
tu cuerpo no recibe oxígeno.
ton souffle haletant montre
un déficit d’oxygène.
e per quanto ti affanni a respirare,
l'ossigeno non viene più trattenuto al suo interno.
que o oxigênio não está entrando,
não importa o quanto você respire.
ты не получишь кислород, 
как бы отчаянно ни пытался дышать!