Pokemon Blue: Rock Tunnel (3DS/GB)
The Rock Tunnel is a naturally formed underground tunnel. Since it has not been developed, it is pitch black inside.
A light of some sort is needed for travellers to find their way.
Pokemon Blue: Route 9 (3DS/GB)
Heading east from Cerulean, the route quickly utilizes the rocky terrain of the area, hopping down a
ledge and passing a Trainer, making this portion of the route a one way, eastbound only passage. Turning east,
the route passes an opening to the south that leads to another Trainer and TM30 (Teleport) in Generation I, or TM40.
Pokemon Blue: Lt Surge Gym Battle (3DS/GB)
Lt. Surge is known as The Lightning American. Apparently, he is or was an American soldier who fought in at least one war,
during which Electric-type Pokémon saved his life. As a member of the army, Surge was a strict CO, and was rather cautious.
Pokemon Blue: Boarding S.S. Anne (GB/3DS)
This ship contains many Pokémon Trainers, including many Gentlemen and Sailors.
In Generation III, in one room on the first floor, a lady will restore a Trainer's party on hand to full health.
Pokemon Blue: Water Flowers of Cerulean City (GB/3DS)
The Cerulean Gym is the official Gym of Cerulean City. It is based on Water-type Pokémon.
The Gym Leader is Misty. Trainers who defeat her will receive the Cascade Badge.
Pokemon Blue: Ash Meets Bill (GB/3DS)
In Pokémon Red, Blue, and Yellow, Bill can be found at the Sea Cottage on the Cerulean Cape,
initially performing an experiment on Pokémon teleportation. However, Bill accidentally becomes combined with the body of a Pokémon.
Pokemon Blue: Mount Moon (GB/3DS)
Mt. Moon is a large cave with many floors and connectors. The interior of the mountain is comprised of caves spanning three separate floors.
Pokemon Blue: Showdown in Pewter City (GB/3DS)
Follow the trail to the northwest to get a free item, a Poké Ball lying in the tall grass. Go back to your starting point,
and this time follow the path to the east.