Rock Tunnel
The Rock Tunnel is a naturally formed underground tunnel. The cave serves to connect the northern and southern segments of Route 10
Geography
The Rock Tunnel is a mostly empty cave. Since it has not been developed, it is pitch black inside. A light of some sort is needed for travelers to find their way, so it is recommended that Pokémon Trainers bring along a Pokémon that can use Flash outside of battle. Rock Climb is necessary for fully exploring the lower floor but is not needed to pass through.
Rock Tunnel is the only alternative route to Lavender Town, as the two other routes have been rendered inaccessible by a slumbering Snorlax and the Saffron City gatekeepers. The cave has two separate floors, both of which are roughly the same size. There are no Trainers within the cave.
Route 10 leads from Cerulean City to Rock Tunnel. At the northern entrance of the cave is a convenient Pokémon Center. The roof of the Kanto Power Plant can also be seen from here. The southern entrance exits onto the remainder of Route 10, leading to Lavender Town.
Items
| Image | Name | Description | Location |
|---|---|---|---|
|
1F | |||
|
TM 47 | Teaches "Steel Wing" to a Pokémon | On the south of the raised section in the north center of the cave. |
|
TM 114 | Teaches "Fling" to a Pokémon | On a raised section in the middle of the map. |
|
Elixir | This medicine can restore 10 PP to each of the moves that have been learned by a Pokémon. | In the middle of a dead end in the south west corner. |
|
X Defense | An item that boosts the Defense stat of a Pokémon during a battle. It wears off once the Pokémon is withdrawn. | On a rock just west of the north east ladder. (Hidden) |
|
X Accuracy | An item that boosts the accuracy of a Pokémon during a battle. It wears off once the Pokémon is withdrawn. | On a rock just south of the central raised section. (Hidden) |
|
B1F | |||
|
PP Up | A medicine that can slightly raise the maximum PP of a single move that has been learned by the target Pokémon. | At the end of the narrow path down stairs near the north east corner. |
|
Max Potion | A spray-type medicine for treating wounds. It will completely restore the max HP of a single Pokémon. | Under the smash rock in the south west corner. (Hidden) |
|
Revive | A medicine that can revive fainted Pokémon. It also restores half of a fainted Pokémon's HP. | Along the middle of the northern wall. |
|
Iron | A nutritious drink for Pokémon. When consumed, it raises the base Defense stat of a single Pokémon. | In a narrow spot accessed using the eastern Rock Climb wall. |
|
Oval Stone | A peculiar stone that makes certain species of Pokémon evolve. It is shaped like an egg. | Down the western Rock Climb wall. |
|
HP Up | A nutritious drink for Pokémon. When consumed, it raises the base HP of a single Pokémon. | On a rock down the center-west Rock Climb wall. (Hidden) |
|
TM 125 | Teaches "Rock Polish" to a Pokémon | between some rocks down the center-east Rock Climb wall. |
|
Aggronite | One variety of the mysterious Mega Stones. Have Aggron hold it, and this stone will enable it to Mega Evolve during battle. | In the south east corner behind a smash rock. |
Pokémon
1F
Unless stated otherwise, all levels in this chart are of Difficulty 0.
| Pokémon | Location | Levels | Rate Morning | Rate Day | Rate Evening | Rate Night |
|---|---|---|---|---|---|---|
 Zubat
|
Cave Floor 
|
12 (12-15 at night) | 10% | 10% | 10% | 40% |
 Machop
|
Cave Floor
|
12 | 20% | 20% | 20% | 0% |
 Machoke
|
Cave Floor
|
15 | 5% | 5% | 5% | 0% |
 Geodude
|
Cave Floor
|
11 (11-12 at night) | 30% | 30% | 30% | 50% |
 Haunter
|
Cave Floor
|
17 | 0% | 0% | 0% | 10% |
 Cubone
|
Cave Floor
|
10 | 30% | 30% | 30% | 0% |
 Marowak
|
Cave Floor
|
12 | 5% | 5% | 5% | 0% |
B1F
Unless stated otherwise, all levels in this chart are of Difficulty 0.
| Pokémon | Location | Levels | Rate Morning | Rate Day | Rate Evening | Rate Night |
|---|---|---|---|---|---|---|
| Zubat
|
Cave Floor
|
12 (12-15 at night) | 10% | 10% | 10% | 40% |
 Golbat
|
Cave Floor
|
15 | 0% | 0% | 0% | 5% |
| Geodude
|
Cave Floor
|
14 | 30% | 30% | 30% | 30% |
| Haunter
|
Cave Floor
|
17 | 0% | 0% | 0% | 5% |
 Onix
|
Cave Floor
|
16 | 20% | 20% | 20% | 20% |
| Cubone
|
Cave Floor
|
10 | 30% | 30% | 30% | 0% |
| Marowak
|
Cave Floor
|
15 | 5% | 5% | 5% | 0% |
 Kangaskhan
|
Cave Floor
|
15 | 5% | 5% | 5% | 0% |
Gallery
Just inside the southern entrance of Rock Tunnel.
Version history
| Version | Changes |
|---|---|
| 0.44 | Implemented. |
| 0.45 | Soon... Bot removed. |
| 0.55 | Aggronite added. |
| 0.57 | Remapped to the HGSS layout. |
