FF8 - Irvine tire un panier - YouTube
Long story short, this is what the video translates to.
Disc 2, Trabia Garden : On the Basket yard, Irvine throws the ball. Whether he scores or not depend on your team's number of victories. Less than 200 Wins makes the shoot miss, between 200 and 249 Wins the shoot succeeds, and at 250 and more the ball turns in the hoop before getting in.
The only conclusion I can get from this is that the more the party fights, the better Irvine gets at basketball.
How good do you think Irvine would be if he really applied himself at basketball?