
Is Gastly Good in FireRed & LeafGreen Playthrough?
Ground attacks pass right through. AbilityLevitate makes Gastly immune to Ground, which is new for the remake. Ghost/Poison with Ground immunity removes one of the two weaknesses. Gengar at trade evolution is the target. Levitate makes the entire line safer than it was in the originals.
Gastly trades roughly evenly with Brock's team.
Gastly trades roughly evenly with Misty's team.
Gastly trades roughly evenly with Lt. Surge's team.
Haunter trades roughly evenly with Erika's team.
Gengar resists most of Koga's coverage and hits back hard.
Gengar has the type edge here and should clean up Sabrina's team.
Gengar has the type edge here and should clean up Blaine's team.
Gengar has the type edge here and should clean up Giovanni's team.
Gengar resists most of Lorelei's coverage and hits back hard.
Gengar resists most of Bruno's coverage and hits back hard.
Gengar has the type edge here and should clean up Agatha's team.
Gengar has the type edge here and should clean up Lance's team.
Gengar has the type edge here and should clean up Terry's team.
Catch Gastly on Pokémon Tower (walking, Lv 13-19, common).
- LV 28PsychicDream Eater100100%15
- After Erika
- TM36PoisonSludge Bomb135100%10
- TM24ElectricThunderbolt90100%15
- TM19GrassGiga Drain75100%10
- TM43NormalSecret Power70100%20
- LV 36GhostShadow Ball120100%15
- After Sabrina
- TM29PsychicPsychic90100%10
- Post-Game
- TM42NormalFacade70100%20
Your Gastly should hit Level 25 before you reach Erika, at typical leveling pace.
- STARTING (Lv 25)
- LV 25GhostShadow Punch90100%20
- After Erika
- TM36PoisonSludge Bomb135100%10
- TM24ElectricThunderbolt90100%15
- TM19GrassGiga Drain75100%10
- LV 31PsychicDream Eater100100%15
- After Sabrina
- TM29PsychicPsychic90100%10
- LV 45GhostShadow Ball120100%15
- Post-Game
- TM42NormalFacade70100%20
Most players are ready to trade before reaching Koga.
- After Brock
- TUTORNormalMega Kick12075%5
- After Erika
- TM36PoisonSludge Bomb135100%10
- TM15NormalHyper Beam15090%5
- TM24ElectricThunderbolt90100%15
- LV 31PsychicDream Eater100100%15
- After Koga
- TM01FightingFocus Punch150100%20
- LV 45GhostShadow Ball120100%15
- After Giovanni
- TUTORNormalDouble-Edge120100%15
- Post-Game
- TUTORNormalBody Slam85100%15
- TM42NormalFacade70100%20
How to Get Gastly in FireRed & LeafGreen
38 encounters across both versions, but Gastly only lives in two places. Pokemon Tower and Lost Cave are packed with them, common at most levels.
2 locations to catch Gastly
Encountered via tall grass encounters
Where To Catch Gastly in FRLG
Gastly is your first catch on the way to Gastly. You'll find walking encounters from Lv. 13-52 across 76 total spots in the chain.
Step 1Gastly ✓Pokémon Tower - 3FLv.13-19FloorRate 90%Pokémon Tower - 4FLv.13-19FloorRate 86%Pokémon Tower - 5FLv.13-19FloorRate 86%Pokémon Tower - 6FLv.14-19FloorRate 85%Pokémon Tower - 7FLv.15-19FloorRate 75%Lost Cave - Room 1Lv.38-40CaveRate 25%Lost Cave - Room 2Lv.38-40CaveRate 25%Lost Cave - Room 3Lv.38-40CaveRate 25%Lost Cave - Room 4Lv.38-40CaveRate 25%Lost Cave - Room 5Lv.38-40CaveRate 25%Lost Cave - Room 6Lv.38-40CaveRate 25%Lost Cave - Room 7Lv.38-40CaveRate 25%Lost Cave - Room 8Lv.38-40CaveRate 25%Lost Cave - Room 9Lv.38-40CaveRate 25%Lost Cave - Room 10Lv.38-40CaveRate 25%Lost Cave - Room 11Lv.40CaveRate 25%Lost Cave - Room 12Lv.40CaveRate 25%Lost Cave - Room 13Lv.40CaveRate 25%Lost Cave - Room 14Lv.40CaveRate 25%
Step 2Catch or Evolve into HaunterPokémon Tower - 7FLv.23-25FloorRate 15%Pokémon Tower - 6FLv.21-23FloorRate 6%Pokémon Tower - 4FLv.20FloorRate 5%Pokémon Tower - 5FLv.20FloorRate 5%Pokémon Tower - 3FLv.20FloorRate 1%Lost Cave - Room 1Lv.44-52CaveRate 30%Lost Cave - Room 2Lv.44-52CaveRate 30%Lost Cave - Room 3Lv.44-52CaveRate 30%Lost Cave - Room 4Lv.44-52CaveRate 30%Lost Cave - Room 5Lv.44-52CaveRate 30%Lost Cave - Room 6Lv.44-52CaveRate 30%Lost Cave - Room 7Lv.44-52CaveRate 30%Lost Cave - Room 8Lv.44-52CaveRate 30%Lost Cave - Room 9Lv.44-52CaveRate 30%Lost Cave - Room 10Lv.44-52CaveRate 30%Lost Cave - Room 11Lv.44-52CaveRate 30%Lost Cave - Room 12Lv.44-52CaveRate 30%Lost Cave - Room 13Lv.44-52CaveRate 30%Lost Cave - Room 14Lv.44-52CaveRate 30%or evolve from Gastly (Step 1)
Step 3Evolve into GengarBREEDINGAvailableLeave a compatible parent at the Four Island Pokemon Day Care to receive a Gengar egg. Requires the Rainbow Pass to access Four Island.
Gastly Weakness
Gastly is weak to Ground, Psychic, Ghost, and Dark. On the flip side, it's immune to Normal and Fighting-type moves entirely. Levitate grants an additional Ground immunity, reshaping the matchup chart. Gastly leans toward special offense (base 100 Sp.Atk) instead of trying to wall anything.
| Damage | Types |
|---|---|
| 2x (Weak) | Ground, Psychic, Ghost, Dark |
| 0.5x (Resist) | Grass |
| 0.25x (Resist) | Poison, Bug |
| 0x (Immune) | Normal, Fighting |
- Dark and Steel types added — Fairy does not exist yet
- Moves are Physical or Special based on type, not per move
What is Gastly Weak Against
GoodBest Pokemon Against Gastly
Kadabra Psychic | C | |
Available Moves Moves
Damage vs Gastly View Kadabra builds →Confusion 2x128-150%KO Thief 2x68-80% | ||
Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Gastly View Nidoqueen builds →Earthquake 2x215-255%KO Thief 2x50-60% | ||
Nidoking PoisonGround | C | |
Available Moves Moves
Damage vs Gastly View Nidoking builds →Earthquake 2x235-278%KO Thief 2x55-65% | ||
Kadabra Psychic | C | |
Available Moves Moves
Damage vs Gastly View Kadabra builds →Confusion 2x128-150%KO Thief 2x68-80% | ||
Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Gastly View Nidoqueen builds →Earthquake 2x215-255%KO Thief 2x50-60% | ||
Nidoking PoisonGround | C | |
Available Moves Moves
Damage vs Gastly View Nidoking builds →Earthquake 2x235-278%KO Thief 2x55-65% | ||
Kadabra Psychic | C | |
Available Moves Moves
Damage vs Gastly View Kadabra builds →Psybeam 2x168-198%KO Thief 2x69-83% Shadow Ball 2x62-74% | ||
Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Gastly View Nidoqueen builds →Earthquake 2x226-268%KO Shadow Ball 2x120-142%KO Thief 2x49-58% | ||
Nidoking PoisonGround | C | |
Available Moves Moves
Damage vs Gastly View Nidoking builds →Earthquake 2x246-291%KO Shadow Ball 2x131-154%KO Thief 2x54-65% | ||
Hypno Psychic | C | |
Available Moves Moves
Damage vs Gastly View Hypno builds →Shadow Ball 2x102-120%KO Confusion 2x89-106%KO Thief 2x49-58% | ||
Marowak Ground | C | |
Available Moves Moves
Damage vs Gastly View Marowak builds →Earthquake 2x203-240%KO Thief 2x35-43% | ||
Kadabra Psychic | C | |
Available Moves Moves
Damage vs Gastly View Kadabra builds →Future Sight 2x318-374%KO Thief 2x71-85% Shadow Ball 2x64-77% | ||
Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Gastly View Nidoqueen builds →Earthquake 2x230-271%KO Shadow Ball 2x123-145%KO Thief 2x51-60% | ||
Nidoking PoisonGround | C | |
Available Moves Moves
Damage vs Gastly View Nidoking builds →Earthquake 2x251-296%KO Shadow Ball 2x134-159%KO Thief 2x55-66% | ||
Exeggutor GrassPsychic | B | |
Available Moves Moves
Damage vs Gastly View Exeggutor builds →Confusion 2x140-164%KO Thief 2x74-88% | ||
Haunter GhostPoison | C | |
Available Moves Moves
Damage vs Gastly View Haunter builds →Dream Eater 2x170-200%KO Shadow Ball 2x118-140%KO Thief 2x70-82% | ||
Kadabra Psychic | C | |
Available Moves Moves
Damage vs Gastly View Kadabra builds →Future Sight 2x318-374%KO Thief 2x71-85% Shadow Ball 2x64-77% | ||
Exeggutor GrassPsychic | B | |
Available Moves Moves
Damage vs Gastly View Exeggutor builds →Psychic 2x244-288%KO Thief 2x74-88% | ||
Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Gastly View Nidoqueen builds →Earthquake 2x230-271%KO Shadow Ball 2x123-145%KO Thief 2x51-60% | ||
Hypno Psychic | C | |
Available Moves Moves
Damage vs Gastly View Hypno builds →Psychic 2x160-189%KO Shadow Ball 2x104-123%KO Thief 2x48-58% | ||
Nidoking PoisonGround | C | |
Available Moves Moves
Damage vs Gastly View Nidoking builds →Earthquake 2x251-296%KO Shadow Ball 2x134-159%KO Thief 2x55-66% | ||
Kadabra Psychic | C | |
Available Moves Moves
Damage vs Gastly View Kadabra builds →Future Sight 2x316-373%KO Thief 2x72-85% Shadow Ball 2x63-75% | ||
Exeggutor GrassPsychic | B | |
Available Moves Moves
Damage vs Gastly View Exeggutor builds →Psychic 2x246-291%KO Thief 2x75-89% | ||
Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Gastly View Nidoqueen builds →Earthquake 2x236-279%KO Shadow Ball 2x126-149%KO Thief 2x49-59% | ||
Hypno Psychic | C | |
Available Moves Moves
Damage vs Gastly View Hypno builds →Psychic 2x160-188%KO Shadow Ball 2x104-123%KO Thief 2x49-59% | ||
Nidoking PoisonGround | C | |
Available Moves Moves
Damage vs Gastly View Nidoking builds →Earthquake 2x255-300%KO Shadow Ball 2x137-162%KO Thief 2x55-65% | ||
Kadabra Psychic | C | |
Available Moves Moves
Damage vs Gastly View Kadabra builds →Future Sight 2x330-389%KO Thief 2x74-88% Shadow Ball 2x65-76% | ||
Exeggutor GrassPsychic | B | |
Available Moves Moves
Damage vs Gastly View Exeggutor builds →Psychic 2x257-303%KO Thief 2x77-91% | ||
Hypno Psychic | C | |
Available Moves Moves
Damage vs Gastly View Hypno builds →Psychic 2x165-194%KO Shadow Ball 2x108-128%KO Thief 2x50-59% | ||
Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Gastly View Nidoqueen builds →Earthquake 2x243-286%KO Shadow Ball 2x130-152%KO Thief 2x51-61% | ||
Nidoking PoisonGround | C | |
Available Moves Moves
Damage vs Gastly View Nidoking builds →Earthquake 2x264-311%KO Shadow Ball 2x140-166%KO Thief 2x56-67% | ||
Deoxys Psychic | A | |
Obtain MethodBirth Island Interact Encounter Available Moves Moves
Damage vs Gastly View Deoxys builds →Psycho Boost 2x474-558%KO Shadow Ball 2x199-235%KO Pursuit 2x91-108%KO | ||
Mewtwo Psychic | S | |
Obtain MethodCerulean Cave Interact Encounter Available Moves Moves
Damage vs Gastly View Mewtwo builds →Psychic 2x313-369%KO Earthquake 2x190-224%KO Shadow Ball 2x153-180%KO | ||
Tyranitar RockDark | S | |
Available Moves Moves
Damage vs Gastly View Tyranitar builds →Earthquake 2x226-266%KO Crunch 2x183-216%KO | ||
Kadabra Psychic | C | |
Available Moves Moves
Damage vs Gastly View Kadabra builds →Future Sight 2x335-394%KO Thief 2x76-90% Shadow Ball 2x64-76% | ||
Lugia Psychic | S | |
Obtain MethodNavel Rock Interact Encounter Available Moves Moves
Damage vs Gastly View Lugia builds →Psychic 2x198-233%KO Earthquake 2x162-190%KO Shadow Ball 2x129-152%KO | ||
In FireRed & LeafGreen, Kingler's Knock Off hits Gastly for 41-48%. Marshtomp deals 43-51% with Hydro Pump.
C | ||
Recommended Build AbilitySturdy ItemLeftovers NatureCareful Moves View Pineco builds →
| ||
C | ||
Recommended Build AbilityShellarmor ItemLeftovers NatureImpish Moves
Damage vs Gastly View Kingler builds →Knock Off 2x41-48% | ||
C | ||
Recommended Build AbilityTorrent ItemNothing NatureHardy Moves
Damage vs Gastly View Marshtomp builds →Hydro Pump43-51% | ||
C | ||
Recommended Build AbilityIntimidate ItemLeftovers NatureJolly Moves
Damage vs Gastly View Arbok builds →Sludge Bomb18-22% Earthquake 2x164-193%KO | ||
C | ||
Recommended Build AbilityLevitate ItemQuickclaw NatureImpish Moves View Duskull builds →
| ||
Gastly Evolutions
Gastly kicks off a three-stage evolution line through Haunter all the way to Gengar. For breeding, average hatch time with a decent partner pool via one egg group. Evolving adds up to 190 stat points total. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed Gastly easily with 22 breeding partners from the Indeterminate egg group. Pass egg moves like Astonish, Explosion, Grudge and 4 more to offspring.
FRLG Gastly Best Moveset
Ghost/Poison pre-evolution with AbilityLevitate granting Ground immunity. 100 Sp. Atk is strong for the stage but 30 HP dies to anything. Two evolutions from Gengar's dominant moveset.
Best Build
Gastly best EVs are Speed and HP
Bulky Support Moveset
- Destiny Bond
- Curse
- Haze
- Night Shade
Recommended Teammates
Moves List
Egg moves make a real difference. Gastly gets Astonish and Explosion exclusively through breeding, filling gaps that TMs and level-up can't touch. Psychic and Normal coverage and more rounds out the picture alongside Sludge Bomb and Shadow Ball.
How to Read the Moves Table
Tabs
- Level-Up
- Learned by leveling up.
- TM
- Taught by a Technical Machine.
- Egg
- Inherited via breeding.
- Tutor
- NPC tutor (cost: items, BP, money).
- Reminder
- An NPC reteaches any move this Pokemon could have learned by leveling up.
- Transfer
- Carried over from an older game using Pokemon HOME.
- Event
- Given out through Mystery Gift events.
Visual Signals
CAT (Category)
How the move deals damage and which stats it uses.
A small dot on the icon's corner marks the move as contact. That triggers abilities like Static, Flame Body, Rough Skin, or Iron Barbs, plus items like Rocky Helmet and Sticky Barb.
Tier (S to D)
Each move's competitive rank in RankedBoost's system. TM, Egg, and Tutor sort by tier by default (best first). On Level-Up, click the Tier header to do the same.
PWR (Power)
Base damage. Numbers shown in a type color include STAB (base × 1.5). Hover any colored number to see the math.
— means no power (status moves) or variable power.
Sorting & Filter
Click any column header to sort. Level-Up opens with Lv 1 at the top. TM, Egg, and Tutor open with the highest-tier moves at the top.
Search filters by move name or type. The Filter button limits the list to STAB, Physical, Special, or Status moves.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Base Stats
A being that exists as a thin gas. It can topple an Indian elephant by enveloping the prey in two seconds.
Almost invisible, this gaseous POKéMON cloaks the target and puts it to sleep without notice.
Gastly FireRed & LeafGreen Guide
Gastly can be caught in the wild at Pokemon Tower and Lost Cave in Pokemon FireRed & LeafGreen.
Game Availability
Present since Red & Blue, Gastly appears in 22 games spanning 10 generations. Gen 1 originals like Gastly have the longest track record of availability in the series.
Click a game to view version-specific details
- Gen 1RBDebut

Red & Blue - Gen 1Y
Yellow - Gen 2GS

Gold & Silver - Gen 2C
Crystal - Gen 3RS

Ruby & Sapphire - Gen 3E
Emerald - Gen 3FRLG

FireRed & LeafGreen - Gen 4DP

Diamond & Pearl - Gen 4Pt
Platinum - Gen 4HGSS

HeartGold & SoulSilver - Gen 5BW

Black & White - Gen 5B2W2

Black 2 & White 2 - Gen 6XY

X & Y - Gen 6ORAS

Omega Ruby & Alpha Sapphire - Gen 7SM

Sun & Moon - Gen 7USUM

Ultra Sun & Ultra Moon - Gen 7LGPE

Let's Go Pikachu & Eevee - Gen 8SwSh

Sword & Shield - Gen 8BDSP

Brilliant Diamond & Shining Pearl - Gen 8PLA
Legends: Arceus - Gen 9SV

Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW

Winds & Waves