One Piece Chapter 15, page 15: Chapter 15: GONG

Buggy's crew fires the massive cannon, launching a Buggy Ball with a loud "WOOBOOM!" and "FIRE!!!" sound. Nami panics, screaming, "LUFFY! GET OUT OF THE WAY!! YOU'RE GONNA GET HIT!!!" Zoro yells, "YOU IDIOT! DON'T YOU KNOW WHEN TO SHUT UP!?" Luffy remains completely calm, smirking as he says, "THAT MEASLY CANNON-BALL'S......NOT GONNA WORK ON ME!"