#013 WeedleAll 251 Pokémon#015 Beedrill![]()
Gengar’s Pokédex · Kanto · Generation I
#014 Kakuna
BugPoison
- SpeciesCocoon Pokémon
- Japanese nameCocoon
- PronunciationKA-KOO-NUH
- Height2′ 0″ 0.61 m
- Weight22.0 lb 9.90 kg
- Gender♂ 50% · ♀ 50%

PokédexWhere to findType matchupsMovesBreedingStats

Pokédex entries
| RedBlue | Almost incapable of moving, this Pokémon can only harden its shell to protect itself from predators. |
|---|---|
| Yellow | Able to move only slightly. When endangered, it may stick out its stinger and poison the enemy. |
| Stadium | Because it is virtually motionless, it may appear dead. Inside, however, a new body is being made. |
| GoldStadium 2 | Although it is a cocoon, it can move a little. It can extend its poison barb if it is attacked. |
| Silver | From this form, it will grow into an adult. As its body becomes softer, the external shell hardens. |
| Crystal | Nearly incapable of movement, it leans against stout trees while waiting for its evolution. |
Where to find Kakuna
| Game | Where to find it | Time | Rarity |
|---|---|---|---|
| Blue | Viridian Forest, Routes 2, 24, 25 | NA | Few/Evolve |
| Red | NA | Many/Evolve | |
| Yellow | Must trade from another pak or evolve a Caterpie that is from another pak. | NA | None/Evolve |
| Gold | National Park | Any | Event/Evolve |
| Silver | Ilex Forest, National Park, Routes 2, 30, 31, Johto (Headbutt) | Mostly Morn. or Day | Many/Evolve |
| Crystal | Ilex Forest, National Park, Johto (Headbutt) | Mostly Morn. or Day | Many/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×2
- Water×1
- Electric×1
- Grass×0.25
- Ice×1
- Fighting×0.25
- PoisonG/S/C ×0.5R/B/Y × 1
- Ground×1
- ×2
- Psychic×2
- BugG/S/C ×0.5R/B/Y × 2
- Rock×2
- Ghost×1
- Dragon×1
- Dark×1
- Steel×1
- Gold, Silver & Crystal: 4 weaknesses and 4 resistances out of 17 types. Defence ratio 1 : 1 (100%).
- Red, Blue & Yellow: 5 weaknesses and 2 resistances out of 15 types. Defence ratio 5 : 2 (250%).
- This Pokémon has more weaknesses and less resistances in RBY than GSC, thus it has a bad defense ratio in RBY.
Offence: same-type attacks against each type
- Normal1st: Normal 2nd: Normal
- Fire1st: Bad 2nd: Normal
- Water1st: Normal 2nd: Normal
- Electric1st: Normal 2nd: Normal
- Grass1st: Normal 2nd: Good
- Ice1st: Normal 2nd: Normal
- Fighting1st: Bad 2nd: Normal
- Poison1st (GSC): Bad 2nd (GSC): Bad 1st (RBY): Good 2nd (RBY): Bad
- Ground1st: Normal 2nd: Bad
- 1st: Bad 2nd: Normal
- Psychic1st: Good 2nd: Normal
- Bug1st (GSC): Normal 2nd (GSC): Normal 1st (RBY): Normal 2nd (RBY): Good
- Rock1st: Normal 2nd: Bad
- Ghost1st: Bad 2nd: Bad
- Dragon1st: Normal 2nd: Normal
- Dark1st: Good 2nd: Normal
- Steel1st: Bad 2nd: No Effect
- Gold, Silver & Crystal: 4 advantages and 11 disadvantages out of 34 types. Offensive ratio 4:11 (~36.36%).
- Red, Blue & Yellow: 5 advantages and 8 disadvantages out of 30 types. Offensive ratio 5:8 (62.5%).
Moves learned by levelling up
| Yellow | R/B | G/S/C | Move | Type | Kind |
|---|---|---|---|---|---|
| — | * | * | Poison Sting | Poison | Physical |
| — | * | * | String Shot | Bug | Status |
| — | Start | Start | Harden | Normal | 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
None.
TMs & HMs Red, Blue & Yellow
None.
Breeding Gold, Silver & Crystal
| Egg groups | Bug group 2 |
|---|
Compatible Pokémon
- Caterpie Family
- Gligar
- Heracross
- Ledyba Family
- Paras Family
- Pineco Family
- Pinsir
- Scyther Family
- Shuckle
- Spinarak Family
- Venonat Family
- Weedle Family
- Yanma
Egg moves
None.
Stats
| Stat | Base | Range at Lv. 100 | G/S/C rank | R/B/Y rank |
|---|---|---|---|---|
| HP | 45 | 263-293 | 35/4522.70% | 32/4224.20% |
| Attack | 25 | 118-148 | 46/494.46% | 42/453.23% |
| Defense | 50 | 168-198 | 37/5525.82% | 32/4424.20% |
| Speed | 35 | 138-168 | 41/4712.54% | 38/429.68% |
| Special Attack G/S/C | 25 | 118-148 | 43/466.08% | — |
| Special Defense G/S/C | 25 | 118-148 | 40/415.48% | — |
| Special R/B/Y | 25 | 118-148 | — | 28/295.48% |
| Total | 205 G/S/C 180 R/B/Y |
923-1103 805-955 |
84/872.28% | 64/652.28% |
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