Board Thread:Questions and Answers/@comment-38947763-20190921181204/@comment-39718735-20200524182004

Kingasdfg wrote:

Steel Ball Run and Jojoveller describe Ball Breaker as the "power of the Steel Balls" rather than Gyro's power. It also would be odd for Gyro to need to perform the Super Spin to summon his own Stand. While it's possible that Ball Breaker was born from Gyro's mastery of the Spin (like Tonio's mastery of cooking unlocked Pearl Jam) it seems more likely from context clues that Ball Breaker is just another form of the Spin, manifested into the form of a Stand. It surely is the same case than Hermit Purple, a stand based on the mastery of a certain combat skill (to the point Joseph seemed to have it even without knowing in part 2), it being difficult to summon or not doesn't matter that much. Why every stand should be easy to summon?. It's probable that at certain point the mastery of an ability does indeed gives you a stand since both Joseph and Jonathan awakened the same stand and both were hamon users

However it's a bit tricky, Gyro had no longer Scan, it was not his stand; yet without having neither Scan or Ball Breaker he could use the steel ball to hit a stand, just like the moment he hit D4C in the hand with it, I'd say he had Ball Breaker at that moment but in a dormant state.

But saying that's not Gyro stand is rather foolish, he can use and summon it, thus it has to be his stand. Even if anyone who masters the steel ball would be able to obtain it, Ball Breaker is still his stand.