Shellder
Red/Blue

Its hard shell repels any kind of attack. It is vulnerable only when its shell is open.

Yellow

The shell can withstand any attack. However, when it is open, the tender body is exposed.

Evolution Chain

shellder
Shellder
water-stone water stone
cloyster
Cloyster

Pokédex Data

Classification Bivalve Pokémon
Height 0.3 m (0'12")
Weight 4.0 kg (8.8 lbs)
Abilities N/A in Gen I

Held Items

None in this generation.

Game Locations

  • Cinnabar Island Area
  • Kanto Route 11 Area
  • Kanto Route 17 Area
  • Kanto Route 18 Area
  • Kanto Route 6 Area
  • Kanto Sea Route 19 Area
  • Kanto Sea Route 20 Area
  • Kanto Sea Route 21 Area
  • Seafoam Islands 1f
  • Seafoam Islands B1f
  • Seafoam Islands B2f
  • Seafoam Islands B3f
  • Seafoam Islands B4f
  • Vermilion City Area
  • Vermilion City Ss Anne Dock

Training

EV Yield +1 defense
Catch Rate 190
Base Friendship 70
Growth Rate slow

Learned Moves

Level Up Moves

Red/Blue
Lvl Name Class Power Acc. PP Effect
1 Tackle
40 100% 35 Inflicts regular damage with no additional effect.
1 Withdraw
40 Raises the user's Defense by one stage.
18 Supersonic
55% 20 Confuses the target.
23 Clamp
35 85% 15 Prevents the target from fleeing and inflicts damage for 2-5 turns.
30 Aurora Beam
65 100% 20 Has a 10% chance to lower the target's Attack by one stage.
39 Leer
100% 30 Lowers the target's Defense by one stage.
50 Ice Beam
90 100% 10 Has a 10% chance to freeze the target.
Yellow
Lvl Name Class Power Acc. PP Effect
1 Tackle
40 100% 35 Inflicts regular damage with no additional effect.
1 Withdraw
40 Raises the user's Defense by one stage.
18 Supersonic
55% 20 Confuses the target.
23 Clamp
35 85% 15 Prevents the target from fleeing and inflicts damage for 2-5 turns.
30 Aurora Beam
65 100% 20 Has a 10% chance to lower the target's Attack by one stage.
39 Leer
100% 30 Lowers the target's Defense by one stage.
50 Ice Beam
90 100% 10 Has a 10% chance to freeze the target.

TM/HM Moves

Red/BlueYellow
Name Class Power Acc. PP Effect
HM03 Surf
90 100% 15 Inflicts regular damage and can hit Dive users.
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.
TM30 Teleport
20 Immediately ends wild battles. No effect otherwise.
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.
TM36 Self Destruct
200 100% 5 User faints.
TM39 Swift
60 20 Never misses.
TM44 Rest
5 User sleeps for two turns, completely healing itself.
TM47 Explosion
250 100% 5 User faints.
TM49 Tri Attack
80 100% 10 Has a 20% chance to burn, freeze, or paralyze the target.
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 30
Attack 65
Defense 100
Sp. Atk 45
Sp. Def 25
Speed 40
Total 305

Type Defenses

(vs. Gen 6+ rules)

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