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.
If you can see through his methods, 
you'll find his weakness!
إذا كشفتَ طريقته في الهجوم، فسوف تعرف
!نقطةَ ضعفه
Dann kannst du auch
seine Schwäche erkennen.
Al hacerlo, encontrarás su debilidad.
Al hacerlo, encontrarás su debilidad.
Ainsi,
tu percevras son point faible.
Se riuscirai a capire il suo modo di agire,
scoprirai i suoi punti deboli!
Se você descobrir como será o ataque,
vai descobrir qual é o ponto fraco dele!
Смотри в оба, и ты найдёшь его слабость!