One Piece Chapter 28, page 18: The Crescent Moon

As the pirates charge up the northern slope, they are suddenly hit by a barrage of pellets. Jango looks up in surprise, "YOU ARE..." Standing at the top of the slope is Usopp, panting heavily but holding his slingshot ready. He declares, "I'M CAPTAIN USOPP! I'VE BEEN WAITING HERE FOR YOU GUYS! I'VE MADE ALL PREPARATIONS! IF YOU DON'T WANT TO DIE, THEN RETREAT AT ONCE!" Meanwhile, Luffy has run past the shore and ended up in the village, confused: "EH!? I REACHED THE VILLAGE? I THOUGHT I WAS RUNNING TO THE NORTH SHORE?" Back at the southern slope, Zoro is still sliding in the oil, groaning, "DAMN! I CAN'T GET UP THERE!"