MT. MOON MAP
You enter from the Route 3 side and climb out toward Route 4, the cave dropping through two basement levels between them. It stays dim but never goes pitch black, so Flash is not needed here.
Mt. Moon Walkthrough
1F
- From the entrance, head west to TM12 Water GunMoveWater GunWaterClassSpecialPower40Accuracy100%PP25Squirts water to attack. near the southwest corner, then north up the west side until a Bug Catcher spots you.
- Turn east past the sign for the Lass's lone Clefairy fight, then work east until the Super NerdSuper Nerd₱275
MagnemiteLv 11
VoltorbLv 11Weak toGround and a second Bug Catcher battle you. - Take the Rare CandyRare Candy1F, near the southeast corner of the floor near the southeast corner, then go north up the east side, where a Lass battles you near the top.
- Head west until a YoungsterYoungster₱150
RattataLv 10RattataLv 10
ZubatLv 10Weak toFightingElectricIcePsychicRock spots you, take the Moon StoneMoon Stone1F, in the northwest area of the floor in the northwest area, then let the HikerHiker₱350
GeodudeLv 10GeodudeLv 10
OnixLv 10Weak to4×Water4×GrassIceFightingGround battle you and climb his ladder down to B1F.
TM12 Water Gun
Rare Candy
Moon StoneB1F
- Follow the tunnel from the northwest ladder and climb down its far ladder to B2F, into the main basement with the way out.
- The east and middle ladders upstairs are side trips, each tunnel ending above a sealed pocket that a Rocket guards.
B2F
- Down the easternmost 1F ladder, battle the Rocket north of your landing, then take the HP UpHP UpB2F, on a plateau to the far east of a Team Rocket Grunt in a closed-off room accessible from the easternmost ladder on 1F on the plateau at the far east end of the room.
- Down the 1F ladder between the other two, walk east until a Rocket spots you, then climb north to TM01 Mega PunchMoveMega PunchNormalClassPhysicalPower80Accuracy85%PP20A powerful punch thrown very hard. on the plateau in that room.
Sandshrew · Rattata · ZubatLv 11₱330SandshrewLv 11RattataLv 11ZubatLv 11
HP UpZubat · EkansLv 12₱360ZubatLv 12
EkansLv 12
TM01 Mega Punch- From the northwest ladder's landing, battle the Rocket in the raised chamber to the east, then loop down the east side and back west along the bottom.
- Climb the west side and take the hidden Moon StoneMoon Stone1F, in the northwest area of the floor from the wall southeast of the Super Nerd.
- Step up into his room so the Super NerdSuper Nerd₱300
GrimerLv 12VoltorbLv 12
KoffingLv 12Weak toGroundPsychicBug battles you; after defeating him, take the Helix FossilHelix FossilB2F, choice between this or the Dome Fossil after defeating the Super Nerd or the Dome Fossil, and he grabs the other. - Go north through your fossil's gap and west until Jessie and JamesRocket Jessie & James₱420EkansLv 14
MeowthLv 14KoffingLv 14Weak toGroundPsychicBugFighting battle you, then climb their ladder and the next one east to Route 4.
Rattata · ZubatLv 13₱390RattataLv 13ZubatLv 13Moon Stone
Dome Fossil
Helix FossilEkans · Meowth · KoffingLv 14₱420EkansLv 14MeowthLv 14KoffingLv 14Pokemon Encounters
Clefairy is the one to slow down for, as low as 1 percent and never above 10 at levels 9 to 13, while Zubat swarms the cave alongside Geodude, Paras, and a 4 percent Sandshrew.
Zubat
Also found in 3 other locations
ITEMS
Pick one fossil after the Rocket fight: the Dome Fossil for Kabuto or the Helix Fossil for Omanyte. Two Moon Stones, one of them out of sight, evolve Clefairy and the Nidorans, with TM01 Mega Punch and TM12 Water Gun nearby.
TM12 Water Gun
Water Gun deals damage with no additional effect.
TM12 Water Gun
Water Gun deals damage with no additional effect.
TM01 Mega Punch
Mega Punch deals damage with no additional effect.
Rare Candy
Causes a level-up and raises happiness.
HP Up
Raises HP effort and happiness.
Escape Rope
Transports user to the outside entrance of a cave.
Moon Stone
Evolves a Nidorina into Nidoqueen, a Nidorino into Nidoking, a Clefairy into Clefable, or a Jigglypuff into Wigglytuff.
Potion
Restores 20 HP.
Dome Fossil
Can be revived into a Kabuto.
Helix Fossil
Can be revived into an Omanyte.
Ether
Restores 10 PP for one move.
Moon Stone
Evolves a Nidorina into Nidoqueen, a Nidorino into Nidoking, a Clefairy into Clefable, or a Jigglypuff into Wigglytuff.
TRAINERS
Rockets join the Bug Catchers and Hikers scattered through Mt. Moon, twelve fights in all with nothing above level 14. The steady stream wears down your potions faster than any single battle threatens you.
Mt. Moon Guide
Mt. Moon is their first appearance. The Team Rocket duo from the show, Meowth included, battle you partway through the cave while trying to swipe the fossils. They hit harder than the plain grunts of Red and Blue, but beating them clears your path to the fossil choice at the back.
Less than which gift starters you've collected. Both fossils make capable Rock types, so the smarter pick covers a hole your Pikachu and the gift trio leave open. Kabuto leans offensive, Omanyte defensive, and you keep only one per save.
Save it for Rock Tunnel and skip it everywhere else. That's the one cave the game leaves unlit, and pushing through blind while Zubat swarm you is rough. No other cave is dark, so Flash is otherwise a wasted move slot. Grab HM05 from Oak's Aide and hand it to a benched Pokemon just before that descent.
There's only Victory Road. Cerulean Cave would be the other option, but it stays locked until you're Champion. Since you climb Victory Road on the way to the League anyway, a lap or two there doubles as a final tune-up.