Ping-pong? That's a game he'll have to ask on, but since Mr. King here asked first--

"Sure is!" Grinning at the compliment to his sport, Tidus jabs a thumb back towards the ocean. "We play underwater! Two five minute matches, six players, and the goal of scoring the ball in the other team's goal! --Oh, right," before he gets too carried away, "has ping-pong got goals?"

Since he realises right at the end there that, oh, only ballgame the guy knows. Hopefully it made sense though?