Route 3, Mt. Moon, Route 4, Cerulean City, Routes 24-25, Cerulean Gym (#002)

Josh ("Joshua") & Tanner ("Mr. Squirt") leave Pewter City behind. They venture forth down Route 3, fight through Mt. Moon and Route 4, blow up Nugget Bridge, have a disturbing encounter at Bill's place, and clean up Cerulean City before defeating Gym Leader Misty.