Appendix:Red and Blue walkthrough/Section 4

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Route 3

Route 3

Route 3 runs off to the east, ending at the entrance to Mt. Moon. There are more than a few Trainers to fight along the way, so it may be necessary to rest up in Pewter City before venturing into the cave.

Trainers

Trainer Pokémon Lass Reward: $135 Pidgey Lv.9 No item Pidgey Lv.9 No item Bug Catcher Reward: $100 Caterpie Lv.10 No item Weedle Lv.10 No item Caterpie Lv.10 No item Youngster Reward: $165 Rattata Lv.11 No item Ekans Lv.11 No item Bug Catcher Reward: $90 Weedle Lv.9 No item Kakuna Lv.9 No item Caterpie Lv.9 No item Metapod Lv.9 No item Youngster Reward: $210 Spearow Lv.14 No item Lass Reward: $150 Rattata Lv.10 No item Nidoran♂ Lv.10 No item Bug Catcher Reward: $110 Caterpie Lv.11 No item Metapod Lv.11 No item Lass Reward: $210 Jigglypuff Lv.14 No item

Available Pokémon
Pokémon Games Location Levels Rate Pidgey R B Y Grass 6-8 50% Spearow R B Y Grass 5-8 40% Jigglypuff R B Y Grass 3, 5, 7 10% A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

Route 4

The Magikarp Salesman

A Pokémon Center stands near the entrance to Mt. Moon. Inside is a shady man that will offer to sell you a Magikarp for $500. The fish can do nothing but Splash until level 15, but evolves into the powerful Gyarados at level 20. If you have the money to spare, you can have a strong Water-type Pokémon much sooner, but you can soon hook one for free with the right fishing rod.

Available Pokémon
Pokémon Games Location Levels Rate Gift Pokémon Magikarp R B Y Gift 5 Purchase for $500 A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

Mt. Moon

Mt Moon, 1F

Mt Moon, B1F

Mt Moon, B2F

Mt. Moon is a large cave set deep inside the mountains. There are many Trainers inside who are looking to battle. Many cave-dwelling Pokémon, like Zubat and Paras, can also be found here.

Trainers

1F Trainer Pokémon Lass Reward: $210 Clefairy Lv.14 No item Bug Catcher Reward: $110 Weedle Lv.11 No item Kakuna Lv.11 No item Super Nerd Reward: $275 Magnemite Lv.11 No item Voltorb Lv.11 No item Bug Catcher Reward: $100 Caterpie Lv.10 No item Metapod Lv.10 No item Caterpie Lv.10 No item Lass Reward: $165 Oddish Lv.11 No item Bellsprout Lv.11 No item Youngster Reward: $150 Rattata Lv.10 No item Rattata Lv.10 No item Zubat Lv.10 No item Hiker Reward: $350 Geodude Lv.10 No item Geodude Lv.10 No item Onix Lv.10 No item B2F Trainer Pokémon Rocket Reward: $330 Sandshrew Lv.11 No item Rattata Lv.11 No item Zubat Lv.11 No item Rocket Reward: $360 Zubat Lv.12 No item Ekans Lv.12 No item Rocket Reward: $480 Raticate Lv.16 No item Rocket Reward: $390 Rattata Lv.13 No item Zubat Lv.13 No item Super Nerd Reward: $300 Grimer Lv.12 No item Voltorb Lv.12 No item Koffing Lv.12 No item

Available Pokémon

1F Pokémon Games Location Levels Rate Zubat R B Y Cave 6-11 79% Geodude R B Y Cave 8, 10 15% Paras R B Y Cave 8 5% Clefairy R B Y Cave 8 1% A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here. B1F Pokémon Games Location Levels Rate Zubat R B Y Cave 7-11 60% Geodude R B Y Cave 7-9 26% Paras R B Y Cave 10 10% Clefairy R B Y Cave 9 4% A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here. B2F Pokémon Games Location Levels Rate Zubat R B Y Cave 9-12 54% Geodude R B Y Cave 9-10 25% Paras R B Y Cave 10, 12 15% Clefairy R B Y Cave 10, 12 6% A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

Items

Item Location Games Ether On a rock in the room with TM01 (hidden)  R  B  HP Up In the basement room, which is reachable from the first ladder found on 1F  R  B  Moon Stone ×2 On the northwest corner of the first floor On a white wall tile southeast of the stairs that lead to the Fossils (hidden)  R  B  Potion ×2 In the room west of the entrance On the other side of the wall east of the entrance  R  B  TM01 (Mega Punch) In the basement room, which is reachable from the second ladder found on 1F  R  B  TM12 (Water Gun) To the west of the Route 3 entrance  R  B  Dome Fossil One Fossil chosen after defeating the Super Nerd  R  B  Escape Rope To the east of Super Nerd, on the east wall, north of the Rare Candy on 1F  R  B  Helix Fossil One Fossil chosen after defeating the Super Nerd  R  B  Rare Candy On the southeast corner of the first floor, east of Super Nerd on 1F  R  B

1F

Collect TM12 (Water Gun) and the Potion to the west, then follow the tunnel around and climb down the nearest ladder.

B2F (south)

The presence of a Team Rocket grunt here means that the criminal gang is up to no good here. Grab the HP Up from the ledge and take the ladder back to the first floor.

1F

To the south are two more Trainers. There are also three items lying around, including a Potion, Rare Candy, and an Escape Rope. A Rare Candy raises a Pokémon's level by one, and an Escape Rope warps you to the cave entrance if you need to heal up. Go north and climb down the next ladder.

B2F (northeast)

Beat up the second Rocket grunt, then pick up TM01 (Mega Punch) on the platform. Check the boulder for a hidden Ether and return to the main floor.

1F

Continue along the tunnel to the northwest corner of the cave. Grab the Moon Stone in the corner and take the ladder to the basement.

B2F (outer area)

Follow the winding tunnel to the northwest, where a Super Nerd claims both fossils lying here as his own. Defeat him, and he lets you take your pick of the two. Like with the Old Amber, the scientists on Cinnabar Island can resurrect a prehistoric Pokémon from each fossil. The Helix Fossil will become an Omanyte, while the Dome Fossil will become a Kabuto. Both are Rock/Water Pokémon, and will be at Level 30. Climb the final ladder to reach the exit.

Route 4

Route 4

Route 4 is a one-way path that leads down from the mountains. Pick up TM04 (Whirlwind) and the hidden Great Ball before jumping the ledge outside Cerulean City.

Trainers
Trainer Pokémon Requires Surf Lass Reward: $465 Paras Lv.31 No item Paras Lv.31 No item Parasect Lv.31 No item

Available Pokémon

Pokémon Games Location Levels Rate Rattata R B Y Grass 8, 10, 12 45% Spearow R B Y Grass 8, 10, 12 30% Ekans R B Y Grass 6, 8, 10, 12 25% Sandshrew R B Y Grass 6, 8, 10, 12 25% Fishing Magikarp R B Y Fishing Old Rod 5 100% Poliwag R B Y Fishing Good Rod 10 50% Goldeen R B Y Fishing Good Rod 10 50% Psyduck R B Y Fishing Super Rod 15 33% Krabby R B Y Fishing Super Rod 15 33% Goldeen R B Y Fishing Super Rod 15 33% A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

Items
Item Location Games TM04 (Whirlwind) Second-highest hill  R  B  Great Ball On the plateau directly east from Mt. Moon's exit (hidden)  R  B

← Part 3 Viridian Forest, Route 2, Pewter City, Pewter Gym

Red and Blue walkthrough

Cerulean City, Cerulean Gym, Route 24, Route 25, Route 5 Part 5 →

This article is part of Project Walkthroughs, a Bulbapedia project that aims to write comprehensive step-by-step guides on each Pokémon game.