Generation I · #0072 — Jellyfish Pokémon
Tentacool, the Jellyfish Pokémon, is a Water/Poison-type species introduced in Generation I that has remained a staple of coastal routes throughout the Pokémon world. As Pokédex #072, Tentacool represents one of the earliest encounters trainers have with dual-typed Pokémon, introducing the concept of poison-based aquatic creatures to the franchise. Standing at just 0.9 meters tall and weighing 45.5 kilograms, Tentacool is a relatively small Pokémon with an incredible composition—its body is approximately 99% water, with only the remaining 1% containing the specialized organ responsible for producing its potent toxin. This delicate balance between its aqueous nature and its venomous capabilities makes Tentacool both fascinating from a biological standpoint and dangerous in encounters, particularly for unsuspecting anglers who accidentally hook them while fishing in shallow waters. With a base stat total of 335, Tentacool exhibits an interesting distribution that emphasizes its special defense (100) and speed (70) while maintaining relatively low offensive and defensive capabilities, making it an efficient early-game Pokémon rather than a powerhouse.
0.9m
45.5kg
Jellyfish Pokémon
Male 50% / Female 50%
blue
tentacles
sea
Prevents stats from being lowered by other Pokémon.
Damages opponents using leeching moves for as much as they would heal.
Heals for 1/16 max HP after each turn during rain.
Tentacool possesses a distinctive appearance that immediately identifies it as a jellyfish-like creature, featuring a light blue, almost translucent body composed largely of water with a rounded lower section resembling a jellyfish's bell. The most striking features are its two large, transparent, red crystalline eyes positioned on opposite sides of its body, complemented by a smaller central eye and a pointed, beak-like projection near the base. Two long, grayish tentacles extend from beneath its round lower body, adorned with a cape-like formation on the back that adds to its graceful appearance in water. These tentacles are lined with stinging cells containing the poison that makes Tentacool a hazard to anything that makes contact with them, and remarkably, if these tentacles are broken or severed, they possess the ability to regenerate over time. The toxin produced by Tentacool is exceptionally potent—some Pokédex entries note that individuals stung by Tentacool require immediate hospitalization, making it far more dangerous than its small stature and gentle drifting behavior would suggest. Additionally, Tentacool demonstrates the ability to absorb sunlight and refract it through the water contained within its body, converting this light energy into beam attacks that it projects from its crystalline eyes, showcasing an unique physiological adaptation that blurs the line between its aqueous composition and its offensive capabilities.
Tentacool exhibits a perfectly balanced gender distribution, with exactly 50% of the species being male and 50% being female, allowing trainers equal opportunity to catch or breed either gender. The species belongs to the Water 3 egg group, making it compatible for breeding with numerous other Water-type Pokémon and certain other creatures within that classification, though notably Tentacool itself must be female to produce eggs of its own species when bred with a compatible male partner. With a base happiness value of 70, Tentacool demonstrates moderate affection toward trainers, suggesting that while it doesn't bond as immediately as some species, consistent care and positive treatment can develop a meaningful relationship. The species possesses a slow growth rate, meaning that Tentacool reaches higher levels more gradually than fast-growing Pokémon, though this leisurely progression is balanced by its respectable experience yield and consistent availability throughout the early game. Egg hatching from Tentacool's lineage requires 20 cycles—equivalent to approximately 4,884 to 5,140 steps—which places it in the moderate range for egg incubation times, neither particularly quick nor extraordinarily lengthy. The breeding mechanics surrounding Tentacool make it an accessible species for trainers interested in creating optimal movesets through egg move inheritance, though its slow growth rate means that invested trainers must commit patience to develop competitive specimens.
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
type-enhancement
Held: Poison-Type moves from holder do 20% more damage.
Cost: 1000
tm01
lets go pikachu lets go eevee
tm02
crystal
tm02
gold silver
tm03
yellow
tm03
crystal
tm03
gold silver
tm03
ruby sapphire
tm03
red blue
tm03
platinum
tm03
firered leafgreen
tm03
heartgold soulsilver
tm03
diamond pearl
tm03
emerald
tm03
xd
tm03
colosseum
tm03
blue japan
tm03
red green japan
tm05
lets go pikachu lets go eevee
tm06
yellow
tm06
gold silver
+591 more TMs/HMs
Tentacool's evolution path represents a straightforward progression in the Pokémon franchise, evolving into Tentacruel upon reaching level 30. This evolution marks a significant power boost, with Tentacruel gaining additional tentacles and substantially increased base stats across nearly every category, particularly in attack and special attack, allowing the evolved form to transition from a defensive, speed-focused creature into a more balanced offensive threat. The evolution from Tentacool to Tentacruel is purely level-based, requiring no special items, held items, or environmental conditions, making it one of the most accessible evolutionary chains in the game. This straightforward evolution mechanism has made Tentacool a reliable choice for early-game trainers who wish to develop their Water/Poison-type team member into a more formidable combatant without requiring extensive effort or resource gathering. The evolutionary relationship between these two species demonstrates the classic "small-to-large" progression common in Generation I Pokémon design, where Tentacool serves as the accessible entry point to the jellyfish-type creature line before Tentacruel emerges as the powerful, tentacle-laden evolution.
kanto
+45 more
kanto
kanto
+56 more
kanto
+3 more
kanto
+55 more
kanto
+32 more
kanto
+30 more
kanto
+1 more
kanto
+40 more
kanto
+41 more
kanto
+7 more
kanto
+26 more
kanto
+10 more
johto
johto
+12 more
johto
+5 more
johto
+26 more
johto
+1 more
johto
+5 more
johto
+4 more
+74 more locations in other games
Tentacool inhabits shallow seas and coastal waters throughout the world, where it drifts aimlessly on ocean currents rather than actively swimming, as it is not particularly strong as a swimmer. Its preferred method of travel through the world's oceans relies entirely on passive movement with the tides and currents, a behavior that reflects its seemingly docile nature despite its venomous tentacles. While drifting, Tentacool searches for food, remaining camouflaged within the water—so effectively that anglers and swimmers may not notice its presence until they come into contact with its stinging tentacles, resulting in the painful and potentially dangerous envenomation described across multiple Pokédex entries. The species has adapted to life in shallow waters, though this adaptation comes with a significant vulnerability: when removed from the sea or during low tide conditions, Tentacool begins to dehydrate rapidly, drying up like parchment according to Ruby-version Pokédex data. Dehydrated Tentacool can sometimes be found washed ashore on beaches, shriveled and vulnerable, though they remain dangerous even in this state. Trainers and beachgoers who encounter such specimens are advised to quickly return them to the ocean to prevent permanent harm, as the species' entire physiology depends on consistent water exposure to maintain functionality and survival.
Drifts in shallow seas. Anglers who hook them byaccident are often punished by its stinging acid.
It can sometimes be found all dry and shriveled upon a beach. Toss it back into the sea to revive it.
When the tide goes out, dehydrated TENTACOOL remainscan be found washed up on the shore.
It drifts aimless ly in waves. Very difficult to seein water, it may not be noticed until it stings.
As it floats along on the waves, it uses its toxicfeelers to stab anything it touches.
TENTACOOL’s body is largely composed of water. If it is removed from the sea, it dries up like parchment.If this POKéMON happens to become dehydrated, put it back into the sea.
TENTACOOL absorbs sunlight and refracts it using water inside its body to convert it into beam energy.This POKéMON shoots beams from its crystal-like eyes.
Its body is almost entirely composed of water. It ensnares its foe with its two long tentacles, then stabs with the poison stingers at their tips.
Its eyes are as transparent as crystals. From them, it shoots mysterious beams of light.
Drifts in shallow seas. Anglers who hook them by accident are often punished by their stingers.
Its body is virtually composed of water. It shoots strange beams from its crystal-like eyes.
It drifts in sea currents. Countless fishermen are hurt by its poison stingers.
Because its body is almost entirely composed of water, it shrivels up if it is washed ashore.
When the tide goes out, dehydrated TENTACOOL remains can be found washed up on the shore.
It drifts aimlessly in waves. Very difficult to see in water, it may not be noticed until it stings.
Because its body is almost entirely composed of water, it shrivels up if it is washed ashore.
Because its body is almost entirely composed of water, it shrivels up if it is washed ashore.
Its body is virtually composed of water. It shoots strange beams from its crystal-like eyes.
Drifts in shallow seas. Anglers who hook them by accident are often punished by their stingers.
Tentacool’s body is largely composed of water. If it is removed from the sea, it dries up like parchment. If this Pokémon happens to become dehydrated, put it back into the sea.
Tentacool absorbs sunlight and refracts it using water inside its body to convert it into beam energy. This Pokémon shoots beams from the small round organ above its eyes.
They can be found lying dehydrated on beaches, but they are often still alive. When soaked in water, they will revive.
It drifts through the sea searching for prey. Its poisonous tentacles break off sometimes, but after a while, they grow back.
It drifts in shallow seas, such as the areas near beaches. If you get bitten or stabbed by its toxic tentacles, rush to the hospital.
Its body is 99% water. The remaining 1% contains the organ that makes its poison.
It can sometimes be found all dry and shriveled up on a beach. Toss it back into the sea to revive it.
Tentacool is not a particularly strong swimmer. It drifts across the surface of shallow seas as it searches for prey.
This Pokémon is mostly made of water. A Tentacool out in the ocean is very hard to spot, because its body blends in with the sea.
They fire beams from the glassy, magenta orbs that resemble eyes atop their heads, and they drift in shallow seas. During low tide, they can sometimes be found on beaches, desiccated.
Tentacool's name is a straightforward portmanteau combining "tentacle" and "cool," reflecting both its most distinctive physical feature—the toxic tentacles extending from its body—and its serene, composed demeanor in water. In Japanese, Tentacool is known as Menokurage (メノクラゲ), a combination of "meno" (目, eye) and "kurage" (クラゲ, jellyfish), emphasizing the creature's notable ocular features and its classification as a jellyfish-type Pokémon. The design itself draws clear inspiration from real-world jellyfish and cnidarian organisms, with its translucent, water-filled body and stinging tentacles mirroring the biological characteristics of actual sea jellyfish. The choice to present Tentacool with vibrant red crystalline eyes rather than realistic coloration demonstrates the franchise's deliberate stylization, making the Pokémon visually distinctive and immediately recognizable even in sprite-based games from Generation I. The pointed beak-like projection and the cape-like formation on its back add additional personality to the design, distinguishing Tentacool from generic jellyfish representations and establishing it as a unique creature within the Pokémon world. This thoughtful design philosophy ensures that Tentacool remains visually appealing and memorable while maintaining thematic consistency with actual jellyfish biology.
Tentacool can learn 76 moves:
Move | Type | Cat. | Power | Acc. | PP |
|---|---|---|---|---|---|
| acid | poison | Special | 40 | 100 | 30 |
| acid armor | poison | Status | — | — | 20 |
| acupressure | normal | Status | — | — | 30 |
| aqua ring | water | Status | — | — | 20 |
| attract | normal | Status | — | 100 | 15 |
| aurora beam | ice | Special | 65 | 100 | 20 |
| barrier | psychic | Status | — | — | 20 |
| bide | normal | Physical | — | — | 10 |
| bind | normal | Physical | 15 | 85 | 20 |
| blizzard | ice | Special | 110 | 70 | 5 |
| brine | water | Special | 65 | 100 | 10 |
| bubble | water | Special | 40 | 100 | 30 |
| bubble beam | water | Special | 65 | 100 | 20 |
| captivate | normal | Status | — | 100 | 20 |
| confuse ray | ghost | Status | — | 100 | 10 |
| constrict | normal | Physical | 10 | 100 | 35 |
| cross poison | poison | Physical | 70 | 100 | 20 |
| curse | ghost | Status | — | — | 10 |
| cut | normal | Physical | 50 | 95 | 30 |
| double team | normal | Status | — | — | 15 |
| double edge | normal | Physical | 120 | 100 | 15 |
| endure | normal | Status | — | — | 10 |
| facade | normal | Physical | 70 | 100 | 20 |
| frustration | normal | Physical | — | 100 | 20 |
| giga drain | grass | Special | 75 | 100 | 10 |
| gunk shot | poison | Physical | 120 | 80 | 5 |
| hail | ice | Status | — | — | 10 |
| haze | ice | Status | — | — | 30 |
| headbutt | normal | Physical | 70 | 100 | 15 |
| hidden power | normal | Special | 60 | 100 | 15 |
| hydro pump | water | Special | 110 | 80 | 5 |
| ice beam | ice | Special | 90 | 100 | 10 |
| icy wind | ice | Special | 55 | 95 | 15 |
| knock off | dark | Physical | 65 | 100 | 20 |
| magic coat | psychic | Status | — | — | 15 |
| mega drain | grass | Special | 40 | 100 | 15 |
| mimic | normal | Status | — | — | 10 |
| mirror coat | psychic | Special | — | 100 | 20 |
| mud shot | ground | Special | 55 | 95 | 15 |
| muddy water | water | Special | 90 | 85 | 10 |
| natural gift | normal | Physical | — | 100 | 15 |
| payback | dark | Physical | 50 | 100 | 10 |
| poison jab | poison | Physical | 80 | 100 | 20 |
| poison sting | poison | Physical | 15 | 100 | 35 |
| protect | normal | Status | — | — | 10 |
| rage | normal | Physical | 20 | 100 | 20 |
| rain dance | water | Status | — | — | 5 |
| rapid spin | normal | Physical | 50 | 100 | 40 |
| reflect | psychic | Status | — | — | 20 |
| rest | psychic | Status | — | — | 5 |
| return | normal | Physical | — | 100 | 20 |
| safeguard | normal | Status | — | — | 25 |
| screech | normal | Status | — | 85 | 40 |
| skull bash | normal | Physical | 130 | 100 | 10 |
| sleep talk | normal | Status | — | — | 10 |
| sludge bomb | poison | Special | 90 | 100 | 10 |
| sludge wave | poison | Special | 95 | 100 | 10 |
| snore | normal | Special | 50 | 100 | 15 |
| substitute | normal | Status | — | — | 10 |
| supersonic | normal | Status | — | 55 | 20 |
| surf | water | Special | 90 | 100 | 15 |
| swagger | normal | Status | — | 85 | 15 |
| swift | normal | Special | 60 | — | 20 |
| swords dance | normal | Status | — | — | 20 |
| take down | normal | Physical | 90 | 85 | 20 |
| thief | dark | Physical | 60 | 100 | 25 |
| tickle | normal | Status | — | 100 | 20 |
| toxic | poison | Status | — | 90 | 10 |
| toxic spikes | poison | Status | — | — | 20 |
| venoshock | poison | Special | 65 | 100 | 10 |
| water gun | water | Special | 40 | 100 | 25 |
| water pulse | water | Special | 60 | 100 | 20 |
| waterfall | water | Physical | 80 | 100 | 15 |
| whirlpool | water | Special | 35 | 85 | 15 |
| wrap | normal | Physical | 15 | 90 | 20 |
| wring out | normal | Special | — | 100 | 5 |
In competitive Pokémon battles, Tentacool occupies a limited niche due to its modest base stat total of 335 and relatively low offensive capabilities, particularly in physical attack (40) and special attack (50), which restrict its damage output significantly. However, its exceptional special defense base of 100 and solid speed of 70 provide a defensive foundation that allows it to function as a stalwart wall against special attackers in lower-tier competitive formats. Tentacool's ability distribution offers three distinct strategic options: Clear Body prevents stat reductions from opposing Pokémon, protecting it from intimidating abilities and moves that would otherwise cripple its performance; Liquid Ooze punishes common draining moves like Leech Seed and Giga Drain by dealing damage to opponents proportional to their healing attempt; and its hidden ability Rain Dish grants passive recovery of 1/16 of maximum HP each turn during rain, enabling a defensive stall strategy in weather-dependent teams. The Water/Poison typing provides useful resistances to numerous common attacking types including water, ice, fighting, and poison, while granting a weakness to electric and grass attacks that trainers must carefully manage. As a Generation I Pokémon, Tentacool has access to a diverse movepool including moves such as Toxic Spikes for entry hazard support, allowing it to contribute meaningfully to team structures despite its limited personal damage output. While Tentacool rarely appears in high-tier competitive play where stronger Pokémon dominate, it remains a viable option in casual battles and lower-tier formats where its defensive bulk and strategic ability utility can prove surprisingly effective.
Tentacool is a water and poison type Pokemon.
Tentacool evolves into tentacruel.
Tentacool is weak to ground, electric and psychic type moves.
Tentacool can be found in kanto sea route 19 (kanto), kanto route 18 (kanto) and kanto sea route 21 (kanto) and 91 other locations.
Tentacool holds significant nostalgic value within the Pokémon franchise as one of the earliest Water-type encounters in the original games, featuring prominently in the anime series where it appeared in memorable episodes such as the pivotal two-part storyline "Tentacool & Tentacruel." The species' docile yet dangerous nature—manifested in its tendency to drift innocuously through waters while possessing potent venom—resonated with early players and viewers, establishing it as an iconic representation of deceptive danger in the Pokémon world. The design's jellyfish inspiration has made Tentacool a culturally recognizable Pokémon even among casual fans unfamiliar with competitive battling or deep lore, as its distinctive appearance translates effectively across all media formats from trading cards to merchandise. Tentacool's prevalence in early-game coastal areas across multiple generations has ensured its presence in the foundational experience of countless trainers embarking on their Pokémon journeys, making it a reliable touchstone of nostalgia for longtime fans. The species has maintained consistent availability throughout the franchise's evolution, never becoming region-exclusive to the point of obscurity, which has allowed it to remain relevant across generations despite its lack of competitive dominance. In the trading card game, Tentacool has appeared in numerous expansions, contributing to its cultural recognition and allowing collectors to obtain various printed versions of the creature, further embedding it within the broader Pokémon cultural landscape.
Tentacool demonstrates exceptional availability across nearly every mainline Pokémon game, reflecting its status as a foundational Water-type species accessible early in most trainer journeys. In the original Red, Blue, and Yellow versions, Tentacool appears in Generation I with Pokédex #072, available in coastal waters from the earliest stages of the game, establishing it as a primary early-game encounter option. Subsequent games have consistently featured Tentacool in their regional Pokédexes, appearing in water routes and coastal areas across Generations II through IX, though its local Pokédex number varies by region—ranging from #0162 in Gold/Silver/Crystal to #0170 in Legends: Arceus, reflecting its shifting availability within each game's progressive structure. The species maintains a high catch rate of 190, making it relatively simple to capture, particularly at full health with standard Poké Balls, which facilitates its consistent availability to trainers of all skill levels. Tentacool's presence in spin-off titles and mobile games like Pokémon GO demonstrates its broad recognition and continued relevance beyond the primary gaming series, ensuring that players across various formats can encounter and utilize this iconic Water/Poison-type. The species' persistent availability across regions and generations—from Kanto to Paldea—underscores Game Freak's commitment to maintaining classic Pokémon accessibility, preventing Tentacool from becoming an obscure relic despite its lack of competitive prominence. This consistency makes Tentacool an ideal species for players seeking a reliable Water-type encounter during their early exploration, whether in Kanto's coastal routes, Johto's waters, or any subsequent region's aquatic environments.