By Level Up:
* Thunder Fang: Level 1
* Quick Attack: Level 1
* Thunderbolt: Level 4
* Roar: Level 13
* Crunch: Level 22
* Thunder: Level 31
* Extreme Speed: Level 40
* Thunder Wave: Level 49
* Wild Charge: Level 58
* Volt Switch: Level 67
By TM/HM:
* Thunder: TM02
* Hidden Power: TM03
* Sunny Day: TM04
* Ice Beam: TM06
* Blizzard: TM07
* Protect: TM08
* Substitute: TM10
* Reflect: TM17
* Light Screen: TM18
* Safeguard: TM19
* Frustration: TM21
* Return: TM22
* Facade: TM23
* Brick Break: TM25
* Double-Edge: TM26
* Aerial Ace: TM27
* Torment: TM28
* Will-O-Wisp: TM29
* Shadow Ball: TM30
* Future Sight: TM31
* Rock Tomb: TM34
* Earthquake: TM35
* Fissure: TM36
* Aerial Ace: TM37
* Secret Power: TM38
* Rock Slide: TM39
* Swagger: TM40
* Sleep Talk: TM41
* Substitute: TM42
* Confuse Ray: TM43
* Psychic: TM44
* Thunder: TM46
* Thunderbolt: TM47
* Thunder Wave: TM48
* Bulk Up: TM49
* Body Slam: TM50
* Flamethrower: TM51
* Rest: TM52
* Attract: TM53
* Thief: TM54
* Dream Eater: TM55
* Flame Wheel: TM56
* Swift: TM57
* Agility: TM58
* Payback: TM59
* Crunch: TM60
* Last Resort: TM61
* Shock Wave: TM62
* Signal Beam: TM63
* Shadow Claw: TM64
* Thunder: TM65
* Discharge: TM66
* Mud-Slap: TM67
* Facade: TM68
* Hidden Power: TM70
* Overheat: TM71
* Steel Wing: TM72
* Struggle Bug: TM73
* Draco Meteor: TM74
* Discharge: TM75
* Round: TM76
* Facade: TM77
* Power Gem: TM78
* Rock Blast: TM79
* Shadow Sneak: TM80
* Giga Impact: TM82
* Grass Knot: TM83
* Heat Wave: TM84
* Zen Headbutt: TM85
* Flash Cannon: TM86
* Dark Pulse: TM87
* Thunder: TM88
* Earth Power: TM89
* Night Slash: TM90
* U-Turn: TM91
* Substitute: TM92
* Draining Kiss: TM93
* Solar Beam: HM01
* Cut: HM02
* Flash: HM03
* Strength: HM04
* Rock Smash: HM06
* Waterfall: HM07
* Surf: HM08
* Dive: HM09
* Fly: HM02
By Breeding:
* Growl: (From Growlithe)
* Take Down: (From Growlithe)
* Roar: (From Growlithe)
* Quick Attack: (From Growlithe)
* Crunch: (From Growlithe)
* Thunder Fang: (From Growlithe)
* Thunder: (From Raichu)
* Thunderbolt: (From Raichu)
* Thunder Wave: (From Raichu)
By Move Tutor:
* Extremespeed: (From Move Tutor)
* Hidden Power (Ice): (From Move Tutor)
* Hidden Power (Fighting): (From Move Tutor)
* Hidden Power (Flying): (From Move Tutor)
* Hidden Power (Poison): (From Move Tutor)
* Hidden Power (Ground): (From Move Tutor)
* Hidden Power (Rock): (From Move Tutor)
* Hidden Power (Bug): (From Move Tutor)
* Hidden Power (Ghost): (From Move Tutor)
* Hidden Power (Steel): (From Move Tutor)
* Hidden Power (Fire): (From Move Tutor)
* Hidden Power (Water): (From Move Tutor)
* Hidden Power (Grass): (From Move Tutor)
* Hidden Power (Electric): (From Move Tutor)
* Hidden Power (Psychic): (From Move Tutor)
* Hidden Power (Dragon): (From Move Tutor)
* Hidden Power (Dark): (From Move Tutor)
Please note that some of these moves may only be available through specific methods, such as breeding, trading, or encountering specific trainers.