
Is Gloom Good in Red & Blue Playthrough?
Handles itself well enough in the mid-game. Needs a Leaf Stone to reach Vileplume, which is where the real value is. No reason to stay here longer than you have to.
Oddish resists most of Brock's coverage and hits back hard.
Oddish has the type edge here and should clean up Misty's team.
Gloom trades roughly evenly with Lt. Surge's team.
Erika's typing presses Gloom's defenses.
Koga's typing presses Vileplume's defenses.
Vileplume trades roughly evenly with Sabrina's team.
Vileplume trades roughly evenly with Blaine's team.
Vileplume has the type edge here and should clean up Giovanni's team.
Vileplume has the type edge here and should clean up Lorelei's team.
Vileplume has the type edge here and should clean up Bruno's team.
Agatha's Pokemon outpace and outclass Vileplume here.
Vileplume trades roughly evenly with Lance's team.
Vileplume trades roughly evenly with Blue's team.
Catch Oddish
Catch Oddish on Route 24 (walking, Lv 12-14, common).
Recommended Moves
- STARTING (Lv 12)
- LV 12GrassAbsorbPower 30Accuracy 100%PP 20
- After Misty
- HM01NormalCutPower 50Accuracy 95%PP 30S.S. Anne
- LV 24PoisonAcidPower 60Accuracy 100%PP 30
- After Lt. Surge
- TM10NormalDouble-EdgePower 100Accuracy 100%PP 15Rocket Hideout
- TM09NormalTake DownPower 90Accuracy 85%PP 20Silph Co.
- After Erika
- TM21GrassMega DrainPower 60Accuracy 100%PP 10Prize for defeating Celadon Gym Leader Erika
- LV 33GrassPetal DancePower 105Accuracy 100%PP 20
- LV 46GrassSolar BeamPower 180Accuracy 100%PP 10
Evolve Oddish to Gloom
Oddish evolves into Gloom at Level 21. Your Oddish should hit Level 21 before you reach Lt. Surge, at typical leveling pace.
Recommended Moves
- STARTING (Lv 21)
- LV 21GrassStun SporePower —Accuracy 75%PP 30
- After Misty
- HM01NormalCutPower 50Accuracy 95%PP 30S.S. Anne
- After Lt. Surge
- TM10NormalDouble-EdgePower 100Accuracy 100%PP 15Rocket Hideout
- TM09NormalTake DownPower 90Accuracy 85%PP 20Silph Co.
- LV 28PoisonAcidPower 60Accuracy 100%PP 30
- After Erika
- TM21GrassMega DrainPower 60Accuracy 100%PP 10Prize for defeating Celadon Gym Leader Erika
- LV 38GrassPetal DancePower 105Accuracy 100%PP 20
- LV 52GrassSolar BeamPower 180Accuracy 100%PP 10
Evolve Gloom to Vileplume
Gloom evolves into Vileplume with a Leaf Stone. You can buy the Leaf Stone at the Celadon Department Store on the 4th floor (₽2,100).
Recommended Moves
- STARTING (Lv 29)
- LV 29GrassPetal DancePower 105Accuracy 100%PP 20
- LV 29GrassSleep PowderPower —Accuracy 75%PP 15
- After Misty
- TM08NormalBody SlamPower 85Accuracy 100%PP 15S.S. Anne
- After Lt. Surge
- TM15NormalHyper BeamPower 150Accuracy 90%PP 5Rocket Game Corner
- TM10NormalDouble-EdgePower 100Accuracy 100%PP 15Rocket Hideout
- After Sabrina
- TM22GrassSolar BeamPower 180Accuracy 100%PP 10Pokémon Mansion
- After Koga
- TM06PoisonToxicPower —Accuracy 85%PP 10Prize for defeating Fuchsia Gym Leader Koga
- TM03NormalSwords DancePower —Accuracy 100%PP 30Silph Co.
How to Get Gloom in Red & Blue
Four rare wild spots dot the Red-side routes, all mid-level. Gloom is Red-only, the bridge between an Oddish and the Leaf Stone that finishes the line.
4 locations to catch Gloom9 locations to catch Oddish
Encountered via tall grass encounters
Encountered via tall grass encounters
Catch Oddish at any of the 9 locations below, then level it up to 21 — it evolves into Gloom.
Where To Catch Gloom in RB
Oddish gets you Gloom sooner: catch it (before Badge 2) and evolve it at Lv 21. Wild Gloom first appears at Route 12 (after Badge 6).
Step 1Catch Oddish
Step 2Gloom ✓Route 12Lv.28-30GrassRedRate 5%Route 13Lv.28-30GrassRedRate 5%Route 14Lv.30GrassRedRate 5%Route 15Lv.30GrassRedRate 5%or evolve from Oddish (Step 1)
Step 3Evolve into Vileplume
Want the exact numbers? Work out your catch odds in Red & Blue for Gloom.
Gloom Weakness
Gloom is weak to Bug, Fire, Ice, Flying, and Psychic. Watch out for Bug attacks, those deal 4x damage. The Grass/Poison typing picks up 4 resistances to work with.
| Damage | Types |
|---|---|
| 4x (Critical) | Bug |
| 2x (Weak) | Fire, Ice, Flying, Psychic |
| 0.5x (Resist) | Water, Electric, Fighting |
| 0.25x (Resist) | Grass |
- Only 15 types exist — Dark, Steel, and Fairy are absent
- Ghost has no effect on Psychic (a known bug, fixed in Gen II)
- Special stat governs both offense and defense — no Sp.Atk / Sp.Def split
What is Gloom Weak Against
FragileBest Pokemon Against Gloom
Charizard Fire | B | |
Obtain MethodEvolve Charmander (Pallet Town Gift) | ||
Hypno Psychic | C | |
Flareon Fire | B | |
Obtain MethodEvolve Eevee (Celadon City Gift) | ||
Exeggutor GrassPsychic | S | |
Lapras WaterIce | B | |
Obtain MethodSilph Co Gift Available Moves Moves
Damage vs Gloom View Lapras builds →Blizzard 2x92-109%KO Psychic 2x50-60% | ||
Kadabra Psychic | B | |
Dewgong WaterIce | C | |
Dodrio Normal | B | |
Gyarados Water | B | |
Obtain MethodEvolve Magikarp (Pallet Town Old Rod) Available Moves Moves
Damage vs Gloom View Gyarados builds →Fire Blast 2x50-60% Blizzard 2x46-55% | ||
Rapidash Fire | C | |
Starmie WaterPsychic | S | |
Obtain MethodEvolve Staryu (Route 19 Super Rod) Available Moves Moves
Damage vs Gloom View Starmie builds →Psychic 2x86-102%KO Blizzard 2x69-82% | ||
Fearow Normal | C | |
Cloyster WaterIce | A | |
Obtain MethodEvolve Shellder (Route 6 Super Rod) | ||
Aerodactyl Rock | B | |
Obtain MethodCinnabar Island Gift Available Moves Moves
Damage vs Gloom View Aerodactyl builds →Fly 2x80-94% Fire Blast 2x50-60% | ||
Gloom Evolutions
Gloom sits between Oddish and Vileplume in this three-stage chain. A Grass/Poison type at 405 stats that can't breed. Special has grown the most so far (+20), but there's still another 85 stats to gain in the final evolution. View every chain in the Evolution Chart.
How to Evolve
RB Gloom Best Moveset
Grass/Poison middle stage with 85 Special and MoveSleep Powder. Sleep utility keeps Gloom slightly relevant, but Vileplume does the same job with better stats. A stepping stone, not a destination.
Best Build
Utility Moveset
- Sleep Powder
- Stun Spore
- Solar Beam
- Mega Drain
Recommended Teammates
Moves List
Most of Gloom's flexibility comes from TMs. Same-type output runs through Petal Dance and Solar Beam, but Normal and the rest of the TM pool push it from predictable to genuinely threatening.
How to Read the Moves Table
Tabs
- Level-Up
- Learned by leveling up.
- TM
- Taught by a Technical Machine.
- 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.
Tier (S to D)
Each move's competitive rank in RankedBoost's system. TM 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 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
All 14 TMs are obtainable before the Elite Four
Tutor Moves
Base Stats
The fluid that oozes from its mouth isn’t drool. It is a nectar that is used to attract prey.
Gloom Red & Blue Guide
In Red & Blue, for a casual playthrough, Gloom works as a placeholder. Grass/Poison coverage is useful early. The real payoff is Vileplume. That's where the stats start mattering.
In Red & Blue, Gloom plays as a trick room. It's slow, so Trick Room or priority moves are key. so pick your spots carefully.
Game Availability
Present since Red & Blue, Gloom appears in 20 games spanning 9 generations. Gen 1 originals like Gloom 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 7Let's Go

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
Explore
Where to go next after Gloom.