After losing to D'Arby, Joseph and Polnareff have their souls taken. In order to have their souls returned, Jotaro shows off Star Platinum's powers before going into a match with D'Arby, warning him that cheating won't work.
This means you won't be able to cheat.
هذا يعني أنك لن تكون قادراً على الغشّ
Das bedeutet,
dass du nicht betrügen kannst.
Lo hice para demostrarte que 
no podrás hacer trampa.
Lo he hecho para demostrarte 
que no podrás hacer trampa.
Tu ne pourras pas tricher
aussi facilement.
D'ora in poi non potrai più barare.
De agora em diante, você não 
será mais capaz de trapacear.