Voltorb

#121 in the HeartGold & SoulSilver Pokédex • Ball Pokémon

Normal

Shiny

Onix Electrode

Pokédex entries

HeartGold

It rolls to move. If the ground is uneven, a sudden jolt from hitting a bump can cause it to explode.

SoulSilver

It was discovered when Poké Balls were introduced. It is said that there is some connection.

Details

Type

Weak to

2×

Resists

0.5×

0.5×

0.5×

Growth

EV yield, catch rate, and experience details for this Pokémon.

Pokédexes	Updated Johto #121
EV yield	1 Spe
Catch rate	190
Base Exp.	103

Eggs

Egg groups, gender ratio, and hatching details for this Pokémon.

Egg groups	Mineral
Gender	Genderless
Egg cycles	20 (5,355 nominal steps) Normal-day estimate. Hatch-check timing, certain calendar dates, and Flame Body or Magma Armor can change the steps needed.

Evolution

Evolution requirements shown in a compact table or chain view.

Pokémon	Requires	Evolution
Voltorb #121	Level 30	Electrode #122

Encounters

Known encounter locations for this Pokémon in this game.

HeartGold

Location	Method	Level	Chance	Conditions
Route 10	Walking in tall grass or a cave	17	20%	-
Route 10	Walking in tall grass or a cave	17	10%	Radio off
Team Rocket HQ	Fixed overworld encounter	23	100%	-
Team Rocket HQ	Fixed overworld encounter	23	100%	-
Team Rocket HQ	Fixed overworld encounter	23	100%	-
Team Rocket HQ	Fixed overworld encounter	23	100%	-
Team Rocket HQ	Fixed overworld encounter	23	100%	-
Team Rocket HQ	Fixed overworld encounter	23	100%	-
Johto Safari Zone Safari Zone Swamp	Walking in tall grass or a cave	42	10%	Safari blocks unlocked; requires at least 10 peak points, counting area-age upgrades. Native bonus index 6: selected only if fewer than 10 earlier eligible bonus entries for this area/method. Each selected slot 10%;, other eligibility can add slots of the same species., In the morning
Johto Safari Zone Safari Zone Swamp	Walking in tall grass or a cave	42	10%	Safari blocks unlocked; requires at least 10 peak points, counting area-age upgrades. Native bonus index 6: selected only if fewer than 10 earlier eligible bonus entries for this area/method. Each selected slot 10%;, other eligibility can add slots of the same species., During the day
Johto Safari Zone Safari Zone Swamp	Walking in tall grass or a cave	42	10%	Safari blocks unlocked; requires at least 10 peak points, counting area-age upgrades. Native bonus index 6: selected only if fewer than 10 earlier eligible bonus entries for this area/method. Each selected slot 10%;, other eligibility can add slots of the same species., At night
Olivine City	In-game NPC trade (variable received level)	1-100	100%	Trade Krabby; received Pokémon copies the offered Pokémon’s level (variable, not fixed 1–100); held item: cheri berry. One-time NPC exchange; displayed level bounds are the modeled variable range.
Pokéwalker Pokéwalker: Town Outskirts	Pokéwalker (selected candidate group)	15	-	Course unlocked at 3,000 cumulative watts. Group A candidate; one of the two candidates in each group is selected for the outing. At least 3,000 daily steps (25% fewer with an advantageous type);, species and group encounter probabilities depend on selection and steps. Fixed moves: tackle, sonic boom, spark, rollout.

SoulSilver

Location	Method	Level	Chance	Conditions
Route 10	Walking in tall grass or a cave	17	20%	-
Route 10	Walking in tall grass or a cave	17	10%	Radio off
Johto Safari Zone Safari Zone Swamp	Walking in tall grass or a cave	42	10%	Safari blocks unlocked; requires at least 10 peak points, counting area-age upgrades. Native bonus index 6: selected only if fewer than 10 earlier eligible bonus entries for this area/method. Each selected slot 10%;, other eligibility can add slots of the same species., In the morning
Johto Safari Zone Safari Zone Swamp	Walking in tall grass or a cave	42	10%	Safari blocks unlocked; requires at least 10 peak points, counting area-age upgrades. Native bonus index 6: selected only if fewer than 10 earlier eligible bonus entries for this area/method. Each selected slot 10%;, other eligibility can add slots of the same species., During the day
Johto Safari Zone Safari Zone Swamp	Walking in tall grass or a cave	42	10%	Safari blocks unlocked; requires at least 10 peak points, counting area-age upgrades. Native bonus index 6: selected only if fewer than 10 earlier eligible bonus entries for this area/method. Each selected slot 10%;, other eligibility can add slots of the same species., At night
Olivine City	In-game NPC trade (variable received level)	1-100	100%	Trade Krabby; received Pokémon copies the offered Pokémon’s level (variable, not fixed 1–100); held item: cheri berry. One-time NPC exchange; displayed level bounds are the modeled variable range.
Pokéwalker Pokéwalker: Town Outskirts	Pokéwalker (selected candidate group)	15	-	Course unlocked at 3,000 cumulative watts. Group A candidate; one of the two candidates in each group is selected for the outing. At least 3,000 daily steps (25% fewer with an advantageous type);, species and group encounter probabilities depend on selection and steps. Fixed moves: tackle, sonic boom, spark, rollout.

Moves

Moves this Pokémon learns naturally by reaching specific levels.

		Class				Description
Start	Charge	Status	-	-	20	The user boosts the power of the Electric move it uses next. It also raises the user’s Sp. Def stat.
5	Tackle	Physical	35	95	35	A physical attack in which the user charges and slams into the foe with its whole body.
8	Sonic Boom	Special	-	90	20	The foe is hit with a destructive shock wave that always inflicts 20 HP damage.
12	Spark	Physical	65	100	20	The user throws an electrically charged tackle at the foe. It may also leave the target paralyzed.
15	Rollout	Physical	30	90	20	The user continually rolls into the foe over five turns. It becomes stronger each time it hits.
19	Screech	Status	-	85	40	An earsplitting screech is emitted to sharply reduce the foe’s Defense stat.
22	Light Screen	Status	-	-	30	A wondrous wall of light is put up to suppress damage from special attacks for five turns.
26	Charge Beam	Special	50	90	10	The user fires a concentrated bundle of electricity. It may also raise the user’s Sp. Atk stat.
29	Self-Destruct	Physical	200	100	5	The user blows up to inflict damage on all Pokémon in battle. The user faints upon using this move.
33	Swift	Special	60	-	20	Star-shaped rays are shot at the foe. This attack never misses.
36	Magnet Rise	Status	-	-	10	The user levitates using electrically generated magnetism for five turns.
40	Gyro Ball	Physical	-	100	5	The user tackles the foe with a high-speed spin. The slower the user, the greater the damage.
43	Explosion	Physical	250	100	5	The user explodes to inflict damage on all Pokémon in battle. The user faints upon using this move.
47	Mirror Coat	Special	-	100	20	A retaliation move that counters any special attack, inflicting double the damage taken.

Machines

Moves this Pokémon can learn from Technical Machines and Hidden Machines in Pokémon HeartGold and SoulSilver.

			Class				Description
TM06	Toxic		Status	-	85	10	A move that leaves the target badly poisoned. Its poison damage worsens every turn.
TM10	Hidden Power	Variable	Special	30–70	100	15	A unique attack that varies in type and intensity depending on the Pokémon using it.
TM12	Taunt		Status	-	100	20	The foe is taunted into a rage that allows it to use only attack moves for two to four turns.
TM16	Light Screen		Status	-	-	30	A wondrous wall of light is put up to suppress damage from special attacks for five turns.
TM17	Protect		Status	-	-	10	It enables the user to evade all attacks. Its chance of failing rises if it is used in succession.
TM18	Rain Dance		Status	-	-	5	The user summons a heavy rain that falls for five turns, powering up Water- type moves.
TM21	Frustration		Physical	-	100	20	A full-power attack that grows more powerful the less the user likes its Trainer.
TM24	Thunderbolt		Special	95	100	15	A strong electric blast is loosed at the foe. It may also leave the foe paralyzed.
TM25	Thunder		Special	120	70	10	A wicked thunderbolt is dropped on the foe to inflict damage. It may also leave the target paralyzed.
TM27	Return		Physical	-	100	20	A full-power attack that grows more powerful the more the user likes its Trainer.
TM32	Double Team		Status	-	-	15	By moving rapidly, the user makes illusory copies of itself to raise its evasiveness.
TM34	Shock Wave		Special	60	-	20	The user strikes the foe with a quick jolt of electricity. This attack cannot be evaded.
TM41	Torment		Status	-	100	15	The user torments and enrages the foe, making it incapable of using the same move twice in a row.
TM42	Facade		Physical	70	100	20	An attack move that doubles its power if the user is poisoned, paralyzed, or has a burn.
TM43	Secret Power		Physical	70	100	20	The user attacks with a secret power. Its added effects vary depending on the user’s environment.
TM44	Rest		Status	-	-	10	The user goes to sleep for two turns. It fully restores the user’s HP and heals any status problem.
TM46	Thief		Physical	40	100	10	The user attacks and steals the foe’s held item simultaneously. It can’t steal if the user holds an item.
TM57	Charge Beam		Special	50	90	10	The user fires a concentrated bundle of electricity. It may also raise the user’s Sp. Atk stat.
TM58	Endure		Status	-	-	10	The user endures any attack with at least 1 HP. Its chance of failing rises if it is used in succession.
TM64	Explosion		Physical	250	100	5	The user explodes to inflict damage on all Pokémon in battle. The user faints upon using this move.
TM70	Flash		Status	-	100	20	The user flashes a light that cuts the foe’s accuracy. It can also be used to illuminate caves.
TM73	Thunder Wave		Status	-	100	20	A weak electric charge is launched at the foe. It causes paralysis if it hits.
TM74	Gyro Ball		Physical	-	100	5	The user tackles the foe with a high-speed spin. The slower the user, the greater the damage.
TM82	Sleep Talk		Status	-	-	10	While it is asleep, the user randomly uses one of the moves it knows.
TM83	Natural Gift		Physical	-	100	15	The user draws power to attack by using its held Berry. The Berry determines its type and power.
TM87	Swagger		Status	-	90	15	The user enrages the foe into confusion. However, it also sharply raises the foe’s Attack stat.
TM90	Substitute		Status	-	-	10	The user makes a copy of itself using some of its HP. The copy serves as the user’s decoy.

Tutors

Moves this Pokémon can learn from move tutors in this game.

	Class				Description
Headbutt	Physical	70	100	15	The user attacks with its head. It may make the foe flinch. To find Pokémon, hit trees.
Magic Coat	Status	-	-	15	A barrier reflects back to the foe moves like Leech Seed and moves that damage status.
Magnet Rise	Status	-	-	10	The user levitates using electrically generated magnetism for five turns.
Rollout	Physical	30	90	20	The user continually rolls into the foe over five turns. It becomes stronger each time it hits.
Signal Beam	Special	75	100	15	The user attacks with a sinister beam of light. It may also confuse the target.
Snore	Special	40	100	15	An attack that can be used only if the user is asleep. The harsh noise may also make the foe flinch.
Sucker Punch	Physical	80	100	5	This move enables the user to attack first. It fails if the foe is not readying an attack, however.
Swift	Special	60	-	20	Star-shaped rays are shot at the foe. This attack never misses.

Traits

Ability options available to this Pokémon in this game.

Soundproof

Ability Slot 1

Gives full immunity to all sound-based moves.

Protects against sound-based moves.

Static

Ability Slot 2

Contact with the Pokémon may cause paralysis.

Has a 30% chance of paralyzing attacking Pokémon on contact.

#62

Onix

#122

Electrode

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