Edition differences: original GBA and Nintendo Switch (2026)
Battle data describes Generation III rules. Availability notes distinguish native catches, evolution and breeding from original GBA imports. GBA games can trade with compatible Generation III games after the network quest; Switch supports local FireRed/LeafGreen trading and cannot import Pokémon from other games. Transfers to Pokémon HOME are one way.
GBA: AuroraTicket and MysticTicket required historical event distributions. Switch: both tickets are added after entering the Hall of Fame, providing access to Deoxys on Birth Island and Lugia/Ho-Oh on Navel Rock. Other event Pokémon and GBA imports are not made available by these tickets.
Original GBA: a roaming Entei or Raikou that successfully ends an encounter with Roar disappears permanently because of a game bug. The Switch editions fix this Roar disappearance bug.
Corphish
#341 in the National Pokédex • Ruffian Pokémon
Pokédex entries
FireRed
It came from overseas. It is a very hardy creature that will quickly proliferate, even in polluted streams.
LeafGreen
It came from overseas. It is a very hardy creature that will quickly proliferate, even in polluted streams.
Details
Type
Category
Abilities
Height
Weight
National Pokédex
Stats
Min
Max
HP
43
196
290
Attack
80
148
284
Defense
65
121
251
Sp. Atk
50
94
218
Sp. Def
35
67
185
Speed
35
67
185
Total
308
Ranges are for Level 100. Max assumes a beneficial nature, 252 EVs, and 31 IVs; min assumes a hindering nature, 0 EVs, and 0 IVs.
Game availability
GBA: requires importing from another Generation III game.Switch: unavailable. This page documents the supported Generation III Pokémon.
Growth
| EV yield | 1 Atk |
|---|---|
| Catch rate | 205 |
| Base Exp. | 111 |
Evolution
| Pokémon | Requires | Evolution |
|---|---|---|
 Corphish #341 | Level 30 This line requires importing Pokémon from another Generation III game on GBA; unavailable on Switch. Requires the National Pokédex. |  Crawdaunt #342 |
Moves
| Class | Description | ||||||
|---|---|---|---|---|---|---|---|
| Start | Bubble | |  Special | 20 | 100 | 30 | A spray of bubbles hits the foe. It may lower the foe’s SPEED stat. |
| 7 | Harden |  |  Status | - | - | 30 | The user stiffens all the muscles in its body to raise its DEFENSE stat. |
| 10 | Vise Grip | |  Physical | 55 | 100 | 30 | Huge, impressive pincers grip and squeeze the foe. |
| 13 | Leer | | Status | - | 100 | 30 | The foe is given an intimidating look that lowers its DEFENSE stat. |
| 19 | Bubble Beam | | Special | 65 | 100 | 20 | A spray of bubbles strikes the foe. It may lower the foe’s SPEED stat. |
| 22 | Protect | | Status | - | - | 10 | Enables the user to evade all attacks. It may fail if used in succession. |
| 25 | Knock Off |  | Special | 20 | 100 | 20 | Knocks down the foe’s held item to prevent its use during the battle. |
| 31 | Taunt | | Status | - | 100 | 20 | The foe is taunted into a rage that allows it to use only attack moves. |
| 34 | Crabhammer | | Special | 90 | 85 | 10 | A large pincer is used to hammer the foe. It has a high critical-hit ratio. |
| 37 | Swords Dance | | Status | - | - | 30 | A frenetic dance of fighting. It sharply raises the ATTACK stat. |
| 43 | Crunch | | Special | 80 | 100 | 15 | The foe is crunched with sharp fangs. It may lower the foe’s SP. DEF. |
| 46 | Guillotine | | Physical | - | 30 | 5 | A vicious tearing attack with pincers. The foe will faint if it hits. |
| Class | Description | ||||||
|---|---|---|---|---|---|---|---|
| TM03 | Water Pulse | | Special | 60 | 100 | 20 | An attack with a pulsing blast of water. It may also confuse the foe. |
| TM06 | Toxic |  | Status | - | 85 | 10 | A move that badly poisons the foe. Its poison damage worsens every turn. |
| TM07 | Hail |  | Status | - | - | 10 | A hailstorm lasting five turns damages all Pokémon except the ICE-type. |
| TM10 | Hidden Power | | Physical | - | 100 | 15 | An attack that varies in type and intensity depending on the user. |
| TM12 | Taunt | | Status | - | 100 | 20 | The foe is taunted into a rage that allows it to use only attack moves. |
| TM13 | Ice Beam | | Special | 95 | 100 | 10 | The foe is struck with an icy beam. It may freeze the foe solid. |
| TM14 | Blizzard | | Special | 120 | 70 | 5 | The foe is blasted with a blizzard. It may freeze the foe solid. |
| TM17 | Protect | | Status | - | - | 10 | Enables the user to evade all attacks. It may fail if used in succession. |
| TM18 | Rain Dance | | Status | - | - | 5 | A heavy rain falls for five turns, powering up WATER-type moves. |
| TM21 | Frustration | | Physical | - | 100 | 20 | This attack move grows more powerful the less the user likes its TRAINER. |
| TM27 | Return | | Physical | - | 100 | 20 | This attack move grows more powerful the more the user likes its TRAINER. |
| TM28 | Dig |  | Physical | 60 | 100 | 10 | An attack that hits on the 2nd turn. Can also be used to exit dungeons. |
| TM31 | Brick Break |  | Physical | 75 | 100 | 15 | An attack that also breaks any barrier like LIGHT SCREEN and REFLECT. |
| TM32 | Double Team | | Status | - | - | 15 | The user creates illusory copies of itself to raise its evasiveness. |
| TM36 | Sludge Bomb | | Physical | 90 | 100 | 10 | Filthy sludge is hurled at the foe. It may poison the target. |
| TM39 | Rock Tomb |  | Physical | 50 | 80 | 10 | Boulders are hurled at the foe. It also lowers the foe’s SPEED if it hits. |
| TM40 | Aerial Ace |  | Physical | 60 | - | 20 | An extremely fast attack against one target. It can’t be evaded. |
| TM42 | Facade | | Physical | 70 | 100 | 20 | An attack that is boosted if user is burned, poisoned, or paralyzed. |
| TM43 | Secret Power | | Physical | 70 | 100 | 20 | An attack that may have an additional effect that varies with the terrain. |
| TM44 | Rest |  | Status | - | - | 10 | The user sleeps for two turns to fully restore HP and heal any status problem. |
| TM45 | Attract | | Status | - | 100 | 15 | If it is the other gender, the foe is made infatuated and unlikely to attack. |
| HM01 | Cut | | Physical | 50 | 95 | 30 | A basic attack. It can be used to cut down thin trees and grass. |
| HM03 | Surf | | Special | 95 | 100 | 15 | A big wave crashes down on the foe. Can also be used for crossing water. |
| HM04 | Strength | | Physical | 80 | 100 | 15 | The foe is slugged at maximum power. Can also be used to move boulders. |
| HM06 | Rock Smash | | Physical | 20 | 100 | 15 | An attack that may also cut DEFENSE. It can also smash cracked boulders. |
| HM07 | Waterfall | | Special | 80 | 100 | 15 | A powerful charge attack. It can also be used to climb a waterfall. |
Tutors
| Class | Description | |||||
|---|---|---|---|---|---|---|
| Body Slam | | Physical | 85 | 100 | 15 | The user drops its full body on the foe. It may leave the foe paralyzed. |
| Counter | | Physical | - | 100 | 20 | A retaliation move that counters any physical hit with double the damage. |
| Double-Edge | | Physical | 120 | 100 | 15 | A reckless, life-risking tackle that also hurts the user a little. |
| Mimic | | Status | - | - | 10 | The user copies the move last used by the foe for the rest of the battle. |
| Substitute | | Status | - | - | 10 | The user creates a decoy using one-quarter of its full HP. |
| Swords Dance | | Status | - | - | 30 | A frenetic dance of fighting. It sharply raises the ATTACK stat. |
Breeding
| Class | Description | |||||
|---|---|---|---|---|---|---|
| Ancient Power | | Physical | 60 | 100 | 5 | An ancient power is used to attack. It may also raise all the user’s stats. |
| Body Slam | | Physical | 85 | 100 | 15 | The user drops its full body on the foe. It may leave the foe paralyzed. |
| Endeavor | | Physical | - | 100 | 5 | Gains power the fewer HP the user has compared with the foe. |
| Mud Sport | | Status | - | - | 15 | Weakens ELECTRIC-type attacks while the user is in the battle. |
Traits
Hyper Cutter
Prevents ATTACK reduction.
Prevents Attack from being lowered by other Pokémon.
Shell Armor
Blocks critical hits.
Protects against critical hits.
