Kanto Route 2

Route 2 is a route located in western Kanto. It connects Viridian City in the south to Pewter City in the north. Viridian Forest and the northwestern terminus of Diglett's Cave are located on this route. Route 2 is a uniquely designed route that contains two pathways for a Trainer to follow, which are separated by a column of trees with only a few gaps blocked by cut-able trees. The western path can be explored by novice Trainers early on in the game; the eastern path can be accessed only with the use of HM01 (Cut), which can only be used by Trainers who have obtained the Cascade Badge or have traveled through Diglett's Cave, a tunnel dug by Diglett that leads here from the eastern edge of Vermilion City.

Heading north from Viridian City, the road splits into two and forms a small square that rejoins and continues north past a ledge. Further north, a cut-able tree can be found along the eastern treeline that leads to the eastern path. After traveling west, the road then curves north and makes its way to a large patch of tall grass below a ledge, which can be avoided by going around to the east. There is another cut-able tree beside the patch of tall grass, also leading to the eastern section. To the north, past the ledge, lies the gate to Viridian Forest. After leaving the Forest, the route continues in the north with a small road, and makes its way east and then north to Pewter City.

South of Pewter City, the route passes the northernmost of two grass patches along the path as it turns to the west. At this point, Trainers can take one of two routes to progress south. The first option is to remain on the main path of Route 2 and travel through the gate and into Viridian Forest, a considerably long and inconvenient detour unless Trainers desire to catch Bug-type Pokémon. The second option, available to Trainers who possess Pokémon that know and can use Cut outside of battle, is to remove a small shrub southeast of the grass patch to gain access to the eastern half of the route. Here, the route meets the northern terminus of Diglett's Cave, a lengthy northwest-southeast tunnel between here and the eastern edge of Vermilion City.

Professor's Aide
On the eastern half on this route, a gatehouse is located. This is where HM05 (Flash) can be obtained from one of Professor Oak's aides, after collecting data on 10 pokemon.