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.
Walrein
#365 in the National Pokédex • Ice Break Pokémon
Pokédex entries
FireRed
It swims through icy seas while shattering ice floes with its large tusks. It is protected by its thick blubber.
LeafGreen
It swims through icy seas while shattering ice floes with its large tusks. It is protected by its thick blubber.
Details
Types
Category
Ability
Height
Weight
National Pokédex
Stats
Min
Max
HP
110
330
424
Attack
80
148
284
Defense
90
166
306
Sp. Atk
95
175
317
Sp. Def
90
166
306
Speed
65
121
251
Total
530
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 | 3 HP |
|---|---|
| Catch rate | 45 |
| Base Exp. | 192 |
Evolution
| Pokémon | Requires | Evolution |
|---|---|---|
 Spheal #363 | Level 32 This line requires importing Pokémon from another Generation III game on GBA; unavailable on Switch. Requires the National Pokédex. |  Sealeo #364 |
Sealeo #364 | Level 44 This line requires importing Pokémon from another Generation III game on GBA; unavailable on Switch. Requires the National Pokédex. |  Walrein #365 |
Moves
| Class | Description | ||||||
|---|---|---|---|---|---|---|---|
| Start | Growl |  |  Status | - | 100 | 40 | The user growls in a cute way, making the foe lower its ATTACK stat. |
| Start | Water Gun | |  Special | 40 | 100 | 25 | The foe is struck with a lot of water expelled forcibly from the mouth. |
| Start | Defense Curl | | Status | - | - | 40 | The user curls up to conceal weak spots and raise its DEFENSE stat. |
| Start | Powder Snow | | Special | 40 | 100 | 25 | Blasts the foe with a snowy gust. It may cause freezing. |
| 7 | Encore | | Status | - | 100 | 5 | Makes the foe use the move it last used repeatedly for two to six turns. |
| 13 | Ice Ball | | Special | 30 | 90 | 20 | A 5-turn rolling attack that becomes stronger each time it rolls. |
| 19 | Body Slam | |  Physical | 85 | 100 | 15 | The user drops its full body on the foe. It may leave the foe paralyzed. |
| 25 | Aurora Beam | | Special | 65 | 100 | 20 | A rainbow-colored attack beam. It may lower the foe’s ATTACK stat. |
| 31 | Hail | | Status | - | - | 10 | A hailstorm lasting five turns damages all Pokémon except the ICE-type. |
| 39 | Rest |  | Status | - | - | 10 | The user sleeps for two turns to fully restore HP and heal any status problem. |
| 39 | Snore | | Physical | 40 | 100 | 15 | An attack that can be used only while asleep. It may cause flinching. |
| 50 | Blizzard | | Special | 120 | 70 | 5 | The foe is blasted with a blizzard. It may freeze the foe solid. |
| 61 | Sheer Cold | | Special | - | 30 | 5 | The foe is attacked with ultimate cold that causes fainting 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. |
| TM05 | Roar | | Status | - | 100 | 20 | The foe is made to switch out with an ally. In the wild, the battle ends. |
| 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. |
| 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. |
| TM15 | Hyper Beam | | Physical | 150 | 90 | 5 | A severely damaging attack that makes the user rest on the next turn. |
| 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. |
| TM23 | Iron Tail |  | Physical | 100 | 75 | 15 | An attack with a steel-hard tail. It may lower the foe’s DEFENSE stat. |
| TM26 | Earthquake |  | Physical | 100 | 100 | 10 | An earthquake that strikes all Pokémon in battle excluding the user. |
| TM27 | Return | | Physical | - | 100 | 20 | This attack move grows more powerful the more the user likes its TRAINER. |
| TM32 | Double Team | | Status | - | - | 15 | The user creates illusory copies of itself to raise its evasiveness. |
| TM39 | Rock Tomb |  | Physical | 50 | 80 | 10 | Boulders are hurled at the foe. It also lowers the foe’s SPEED if it hits. |
| 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. |
| 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. |
| HM08 | Dive | | Special | 60 | 100 | 10 | The user dives underwater on the first turn and strikes next turn. |
Tutors
| Class | Description | |||||
|---|---|---|---|---|---|---|
| Body Slam | | Physical | 85 | 100 | 15 | The user drops its full body on the foe. It may leave the foe paralyzed. |
| 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. |
| Rock Slide | | Physical | 75 | 90 | 10 | Large boulders are hurled at the foe. It may make the foe flinch. |
| Substitute | | Status | - | - | 10 | The user creates a decoy using one-quarter of its full HP. |
Traits
Thick Fat
Heat-and-cold protection.
Halves damage from Fire and Ice moves.
