Tentacool
Red/Blue

Drifts in shallow seas. Anglers who hook them by accident are often punished by its stinging acid.

Yellow

It can sometimes be found all dry and shriveled up on a beach. Toss it back into the sea to revive it.

Evolution Chain

tentacool
Tentacool
Level 30
tentacruel
Tentacruel

Pokédex & Training Data

Classification Jellyfish Pokémon
Height 0.9 m (2'11")
Weight 45.5 kg (100.3 lbs)
Abilities N/A in Gen I
EV Yield +1 Sp. Def
Catch Rate 190
Base Friendship 70
Growth Rate slow

Pokédex Numbers

Kanto (R/B/Y) #072
Johto (G/S/C) #162
Hoenn (R/S/E) #066
Sinnoh (D/P) #136
Sinnoh (Plat.) #136
Johto (HG/SS) #164
Kalos (Coastal) #025
Hoenn (OR/AS) #068
Alola (S/M) #106
Alola (US/UM) #129
Hisui #170
National #072
Isle of Armor #040
Blueberry #050

Held Items

None in this generation.

Game Locations

Cinnabar Island Area
Kanto Route 11 Area
Kanto Route 12 Area
Kanto Route 13 Area
Kanto Route 17 Area
Kanto Route 18 Area
Kanto Sea Route 19 Area
Kanto Sea Route 20 Area
Kanto Sea Route 21 Area
Pallet Town Area
Seafoam Islands B3f
Seafoam Islands B4f
Vermilion City Area
Vermilion City Ss Anne Dock
Viridian City Area

Learned Moves

Level Up Moves

Red/Blue
Lvl Name Class Power Acc. PP Effect
1 Acid
40 100% 30 Has a 10% chance to lower the target’s Special Defense by one stage.
7 Supersonic
— 55% 20 Confuses the target.
13 Wrap
15 90% 20 Prevents the target from fleeing and inflicts damage for 2-5 turns.
18 Poison Sting
15 100% 35 Has a 30% chance to poison the target.
22 Water Gun
40 100% 25 Inflicts regular damage with no additional effect.
27 Constrict
10 100% 35 Has a 10% chance to lower the target’s Speed by one stage.
33 Barrier
— — 20 Raises the user’s Defense by two stages.
40 Screech
— 85% 40 Lowers the target’s Defense by two stages.
48 Hydro Pump
110 80% 5 Inflicts regular damage with no additional effect.
Yellow
Lvl Name Class Power Acc. PP Effect
1 Acid
40 100% 30 Has a 10% chance to lower the target’s Special Defense by one stage.
7 Supersonic
— 55% 20 Confuses the target.
13 Wrap
15 90% 20 Prevents the target from fleeing and inflicts damage for 2-5 turns.
18 Poison Sting
15 100% 35 Has a 30% chance to poison the target.
22 Water Gun
40 100% 25 Inflicts regular damage with no additional effect.
27 Constrict
10 100% 35 Has a 10% chance to lower the target’s Speed by one stage.
33 Barrier
— — 20 Raises the user’s Defense by two stages.
40 Screech
— 85% 40 Lowers the target’s Defense by two stages.
48 Hydro Pump
110 80% 5 Inflicts regular damage with no additional effect.

TM/HM Moves

Red/BlueYellow
Name Class Power Acc. PP Effect
HM01 Cut
50 95% 30 Inflicts regular damage with no additional effect.
HM03 Surf
90 100% 15 Inflicts regular damage and can hit Dive users.
TM03 Swords Dance
— — 20 Raises the user’s Attack by two stages.
TM06 Toxic
— 90% 10 Badly poisons the target, inflicting more damage every turn.
TM09 Take Down
90 85% 20 User receives 1/4 the damage it inflicts in recoil.
TM10 Double Edge
120 100% 15 User receives 1/3 the damage inflicted in recoil.
TM11 Bubble Beam
65 100% 20 Has a 10% chance to lower the target’s Speed by one stage.
TM12 Water Gun
40 100% 25 Inflicts regular damage with no additional effect.
TM13 Ice Beam
90 100% 10 Has a 10% chance to freeze the target.
TM14 Blizzard
110 70% 5 Has a 10% chance to freeze the target.
TM20 Rage
20 100% 20 If the user is hit after using this move, its Attack rises by one stage.
TM21 Mega Drain
40 100% 15 Drains half the damage inflicted to heal the user.
TM31 Mimic
— — 10 Copies the target’s last used move.
TM32 Double Team
— — 15 Raises the user’s evasion by one stage.
TM33 Reflect
— — 20 Reduces damage from physical attacks by half.
TM34 Bide
— — 10 User waits for two turns, then hits back for twice the damage it took.
TM40 Skull Bash
130 100% 10 Raises the user’s Defense by one stage. User charges for one turn before attacking.
TM44 Rest
— — 5 User sleeps for two turns, completely healing itself.
TM50 Substitute
— — 10 Transfers 1/4 of the user’s max HP into a doll, protecting the user from further damage or status changes until it breaks.

Base Stats

Hp 40
Attack 40
Defense 35
Sp. Atk 50
Sp. Def 100
Speed 70
Total 335

Type Defenses

(vs. Gen 6+ rules)

0.5x
0.5x
2x
0.5x
0.5x
0.5x
2x
2x
0.5x
0.5x
0.5x