Kanto Route 3/Differences among generations/Generations II

Many changes were made to Route 3 in Generation II. First, the route was shortened significantly. Also, the number of s along the path was reduced to four. Similarly, the size of the grass patches were reduced by nearly 50%.

Traveling east from Pewter City, the route passes two barriers on either side of the road, and cuts to a clearing that creates a fork in the road, and allows travel north or south, with south curving around eastern and then leading to a dead end. In order to progress, Trainers must turn north after the route opens up and progress east along the northern half. For its western half, Route 3 is a split-level route, so at any point, Trainers can jump the ledges located south of this path, to access a middle section of the route between two ledges, and then again, so Trainer are able to travel west which curves north back to the clearing at the start of the route.

East of the second pair of ledges, the route curves south before returning east near a small patch of tall grass. The size of the tall grass has been reduced by about half. 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 past the hilly terrain, south past another ledge taking the route to a large clearing, east again which travels across the clearing, and, finally, to the north, passing the second patch of grass which has also been reduced in size, which has a fence as well as a signpost, which gives out directions.

Part of Route 4 has been combined with Route 3 so now only one route connects Pewter with Mt. Moon, however, the Pokémon Center is no longer there. There are no obstacles along the remainder of the route as it proceeds north towards Mt. Moon.