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.
Which means that the only thing 
Li'l Bomber can track right now...
ويعني بالمقابل أنّ الشيء الوحيد الذي يستطيع
...ليتل بومبر تعقُّبه الآن
O sea, que lo único
que puede rastrear Li'l Bomber…
O sea, que lo único
que puede rastrear Li'l Bomber…
Ce qui signifie
que Lil’ Bomber ne détecte…
O que significa que a única
coisa que o Li'l Bomber consegue detectar...
Как думаешь, 
кого сейчас нашёл Аэросмит?