Board Thread:Anime/Game Discussion/@comment-43627371-20200916145620/@comment-39189388-20200917043042

Star Platinum was never shown to have any stand ability, its only 'powers' were its insane speed, strength and precision. This isn't because he didn't have the power, it was just because Jotaro didn't know about it until the DIO fight. That whole thing about The World and Star Platinum being the same kind of stand indicated that they both had the same power, Jotaro just hadn't learnt about it yet.