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.
You're controlling your Stand at 
that distance with magnetism!
أنت تتحكّم بالستاند الخاص بك
!بالمغنطة من هذه المسافة
Aus dieser Entfernung kontrollierst
du deinen Stand mittels Magnetismus!
¡Usas tu Stand para controlar
el magnetismo desde esa distancia!
Usas tu Stand para controlar
el magnetismo desde esa distancia.
Tu opères à cette distance
en utilisant le magnétisme de ton Stand.
Col tuo Stand, quella distanza 
sei in grado di controllare il magnetismo!
Você controla seu Stand à distância
utilizando campos magnéticos!
Твой стенд притягивал вещи
 с безопасной дистанции.