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.
and strike him with 
Emperor Crimson's arm, Doppio!
!وهاجمه بذراع إمبيرور كريمزن يا دوبّيو
und schlage ihn mit dem Arm
von Emperor Crimson, Doppio!
y golpearlo
con el brazo de Emperor Crimson.
y golpearlo
con el brazo de Emperor Crimson.
et tu le frapperas
avec le bras d’Emperor Crimson !
e colpiscilo con le braccia
di Emperor Crimson, Doppio!
e atinja-o com o braço
do Emperor Crimson, Doppio!
и ударь его руками 
Кинг Кримзона, Доппио!