#023 EkansAll 251 Pokémon#025 Pikachu
Gengar’s Pokédex · Kanto · Generation I
#024 Arbok
Poison
- SpeciesCobra Pokémon
- Japanese nameArbok
- PronunciationAR-BOCK
- Height11′ 6″ 3.51 m
- Weight143.0 lb 64.35 kg
- Gender♂ 50% · ♀ 50%
PokédexWhere to findType matchupsMovesBreedingStats
Pokédex entries
| RedBlue | It is rumored that the ferocious warning markings on its belly differ from area to area. |
|---|---|
| Yellow | The frightening patterns on its belly have been studied. Six variations have been confirmed. |
| Stadium | If it encounters an enemy, it raises its head, intimidating the opponent with the frightening pattern on its body. |
| GoldStadium 2 | Transfixing prey with the face-like pattern on its belly, it binds and poisons the frightened victim. |
| Silver | With a very vengeful nature, it wont give up the chase, no matter how far, once it targets its prey. |
| Crystal | To intimidate foes, it spreads its chest wide and makes eerie sounds by expelling air from its mouth. |
Where to find Arbok
| Game | Where to find it | Time | Rarity |
|---|---|---|---|
| Blue | Evolve from Ekans at level 22 | NA | Evolve |
| Red | Unknown Dungeon, Route 23 | NA | Few/Evolve |
| Yellow | Evolve from Ekans at level 22 | NA | Evolve |
| Gold | Never | Evolve | |
| Silver | Routes 3, 4, 26, 27 | Any | Few/Evolve |
| Crystal | Mt. Silver, Routes 3, 4, 26, 27, 28, 42 | Morn. or day | Few/Evolve |
How to catch
| Ground | Surf | Fishing | Forest Tree | Mountain Tree | Rock Smash | Breed | Evolve | Event | BugCatch | Game Corner | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| R/B | ✓ | ||||||||||
| Yellow | ✓ | ||||||||||
| G/S | ✓ | ||||||||||
| Crystal | ✓ | ✓ |
✓ marks how you can get it in each game. Shaded boxes are methods that didn’t exist in that game.
Type matchups
Defence: damage taken from each attack type
- Normal×1
- Fire×1
- Water×1
- Electric×1
- Grass×0.5
- Ice×1
- Fighting×0.5
- Poison×0.5
- Ground×2
- ×1
- Psychic×2
- BugG/S/C ×0.5R/B/Y × 2
- Rock×1
- Ghost×1
- Dragon×1
- Dark×1
- Steel×1
- Gold, Silver & Crystal: 2 weaknesses and 4 resistances out of 17 types. Defence ratio 1 : 2 (50%).
- Red, Blue & Yellow: 3 weaknesses and 3 resistances out of 15 types. Defence ratio 1 : 1 (100%).
- This Pokémon has one less weakness and one more resistance in GSC than in RBY. So this Pokémon has a better defense ratio in GSC.
Offence: same-type attacks against each type
- NormalNormal
- FireNormal
- WaterNormal
- ElectricNormal
- GrassGood
- IceNormal
- FightingNormal
- PoisonBad
- GroundBad
- Normal
- PsychicNormal
- BugG/S/C NormalR/B/Y Good
- RockBad
- GhostBad
- DragonNormal
- DarkNormal
- SteelNo Effect
- Gold, Silver & Crystal: 1 advantage and 5 disadvantages out of 17 types. Offensive ratio 1:5 (20%).
- Red, Blue & Yellow: 2 advantages and 4 disadvantages out of 15 types. Offensive ratio 1:2 (50%).
Moves learned by levelling up
| Yellow | R/B | G/S/C | Move | Type | Kind |
|---|---|---|---|---|---|
| — | Start | Start | Wrap | Normal | Physical |
| — | Start | Start | Leer | Normal | Status |
| — | Start | Start | Poison Sting | Poison | Physical |
| — | Start | Start | Bite | NormalR/B/Y DarkG/S/C | Special |
| — | 27 | 25 | Glare | Normal | Status |
| — | 36 | 33 | Screech | Normal | Status |
| — | 47 | 43 | Acid | Poison | Physical |
| — | — | 51 | Haze | Ice | Status |
“Start” means it knows the move from level 1; a dash means it doesn’t learn the move by levelling up in that game.
Move Tutor Crystal
None.
TMs & HMs Gold, Silver & Crystal
- TM02Headbutt
- TM03Curse
- TM06Toxic
- TM10Hidden Power
- TM11Sunny Day
- TM13Snore
- TM15Hyper Beam
- TM17Protect
- TM19Giga Drain
- TM20Endure
- TM21Frustration
- TM26Earthquake
- TM27Return
- TM28Dig
- TM32Double Team
- TM34Swagger
- TM35Sleep Talk
- TM36Sludge Bomb
- TM44Rest
- TM45Attract
- TM46Thief
- HM04Strength
TMs & HMs Red, Blue & Yellow
- TM06Toxic
- TM08Body Slam
- TM09Take Down
- TM10Double-Edge
- TM15Hyper Beam
- TM20Rage
- TM21Mega Drain
- TM26Earthquake
- TM27Fissure
- TM28Dig
- TM31Mimic
- TM32Double Team
- TM34Bide
- TM40Skull Bash
- TM44Rest
- TM48Rock Slide
- TM50Substitute
- HM04Strength
Breeding Gold, Silver & Crystal
| Egg groups | Ground Pokémon group 7 Dragon Pokémon group 13 |
|---|
Compatible Pokémon
- Aipom
- Cyndaquil Family
- Delibird
- Diglett Family
- Dunsparce
- Eevee Family
- Ekans Family
- Farfetch’d
- Girafarig
- Growlithe Family
- Houndour Family
- Mankey Family
- Mareep Family
- Meowth Family
- Miltank
- Nidoran♂ Family
- Nidoran♀
- Phanpy Family
- Pikachu Family
- Ponyta Family
- Psyduck Family
- Rattata Family
- Rhyhorn Family
- Sandshrew Family
- Seel Family
- Sentret Family
- Smeargle
- Sneasel
- Snubbull Family
- Stantler
- Swinub Family
- Tauros
- Teddiursa Family
- Vulpix Family
- Wooper Family
- Charmander Family
- Dratini Family
- Horsea Family
- Magikarp Family
Egg moves
| Move | How to pass it down |
|---|---|
| Beat Up | Mate with a male Sneasel. |
| Pursuit | Mate with a male Dunsparce, Rattata/Raticate, Tauros, or Umbreon. |
| Slam | Mate with a male from Dratini, Pikachu, Sentret, or Wooper Family. |
| Spite | Mate with a male Dunsparce. |
| Crunch (C) | Mate with a male from Girafarig or Houndour Family. |
Stats
| Stat | Base | Range at Lv. 100 | G/S/C rank | R/B/Y rank |
|---|---|---|---|---|
| HP | 60 | 293-323 | 27/4540.14% | 24/4244.05% |
| Attack | 85 | 238-268 | 12/4969.15% | 12/4567.35% |
| Defense | 69 | 206-236 | 25/5550.00% | 22/4450.00% |
| Speed | 80 | 228-258 | 17/4769.15% | 16/4265.54% |
| Special Attack G/S/C | 65 | 198-228 | 23/4648.01% | — |
| Special Defense G/S/C | 79 | 226-256 | 18/4163.67% | — |
| Special R/B/Y | 65 | 198-228 | — | 16/2944.05% |
| Total | 438 G/S/C 359 R/B/Y |
1389-1569 1163-1313 |
30/8761.79% | 26/6555.96% |
Ranges are the lowest and highest the stat can be at level 100. Ranks compare the base stat with every other Pokémon in those games (1 is the highest), with its percentile underneath.
Restored from Gengar’s Online Pokédex v4.2, one of the first Pokédexes on the web, created by Curtis Alumbaugh (Gengar) with Ian Alumbaugh (Haunter) and kept by Pokémon Dungeon. How to read this page · Red, Blue & Yellow moves · The Library