Kanto Route 3/Differences among generations/Generation IV

In Generation IV, the route is different from other generations, with some area changes, as well as major aesthetic features enhanced, including depth and sprite changes. The trees removed in Generation III return, and the east area of the route changes too. Hills, rocks, and are added near Mt. Moon, now part of this route like in Generation II. An additional area at the southwest end of the route allows players to change their 's current form by interacting with different meteorites. Also, a new hill is placed south of the tall grass.

For its western half, Route 3 is a split-level route. Heading east, Trainers must turn north after the route opens up and progress east along the northern half. The southern half of the route is only accessible by hopping down ledges that will lead Trainers into the paths of more rival Trainers. East of the second pair of ledges, the route curves south before returning east near a large patch of grass containing wild Pokémon. This patch follows the route until the path turns north ahead of a hill. From this point, the route makes a backward "S" curve, turning east, south, east and, finally, to the north, passing the second patch of grass on the route. There are no obstacles along the remainder of the route as it proceeds north towards Mt. Moon. Just before the entrance to the cave, there is a Pokémon Center.

Three unique items have also been scattered around the place, including a Big Root, located near a ; a Star Piece, located near the meteors; and a Hyper Potion, hidden near the Pokémon Center. The number of Trainers along the path has been increased to eleven. The Pokémon Center at the entrance of Mt. Moon returns but the area around it was reduced significantly in size.