Rock Tunnel can be exhausting, so the player may need to bring a few extra items. Potions are a must with fifteen Trainers wandering around in the darkness, and Repels and Escape Ropes are also helpful. If any of his/her Pokémon know the Dig move, they can return the player to the entrance at any time.
Trainers with a Vs. Seeker by their names, when alerted for a rematch using the item, may use higher-level Pokémon.
The Name Rater
Lavender is a tiny, quiet town, but is not without its own unique landmarks. The most well-known is Pokémon Tower, while the Lavender Volunteer Pokémon House and the Name Rater are also found here. The Poké Mart in the southeast offers some new items, like Revives and Great Balls.
The house on the south side of town belongs to the Name Rater. This man judges the nicknames of the player's Pokémon, and gives him/her the chance to change them. His service is free, and nicknames can be changed at any time.
Pokémon Tower, where departed Pokémon are laid to rest, appears to be the source of the town's problems. Having a connection to the spirit world, most wild Pokémon found inside are Ghosts. Blue is on the tower's second floor, but it is possible to delay that battle by avoiding the tower for now. The spirit world's influence strengthens above the second floor, where ghosts and possessed Channelers are common. But without a Silph Scope, it is impossible to climb to the tower's top floor.
Most ghosts inside the tower are truly Pokémon in disguise that can be battled or captured after obtaining the Silph Scope. The one true ghost in the tower blocks access to the final floor, but since the player cannot do anything but run from it, it is best to ignore it for now. However, there are rumors of a Silph Scope prototype in Celadon City, so pack up and head west.
Volunteer Pokémon House
Kindly old Mr. Fuji, head of the Lavender Volunteer Pokémon House, has gone missing. His disappearance may have some connection to the recent paranormal activity occurring in nearby Pokémon Tower. However, besides keeping an eye open for clues, there is nothing that can be done about it right now.
The tiny Route 7 leads straight into Celadon City. The patch of tall grass here gives the player a chance to train a bit more before challenging the next Gym. The local Fire-type Pokémon—either GrowlitheFR or VulpixLG—will also be useful there.