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.
He should have the strength 
to pull the iron from my body!
لديه القوّة الكافية لسحبِ الحديد من جسدي
mir alles Eisen aus
dem Körper zu saugen!
¡Tiene la fuerza necesaria
para arrancarme el hierro del cuerpo!
¡Tiene la fuerza necesaria
para arrancarme el hierro del cuerpo!
Elle va attirer le fer
hors de mon corps !
Sta attaccando con abbastanza forza
da far uscire tutto il ferro che mi è rimasto in corpo!
para puxar o ferro do meu corpo!
Ему нужен магнит, 
который вытащит из меня железо!