By Level Up:
* Thunder Fang (Level 1): Electric-type physical move.
* Quick Attack (Level 4): Normal-type physical move.
* Thunder Wave (Level 7): Electric-type status move.
* Crunch (Level 11): Dark-type physical move.
* Thunderbolt (Level 14): Electric-type special move.
* Extreme Speed (Level 18): Normal-type physical move.
* Thunder (Level 22): Electric-type special move.
* Agility (Level 26): Normal-type status move.
* Scary Face (Level 30): Normal-type status move.
* Reflect (Level 34): Normal-type status move.
* Charge Beam (Level 38): Electric-type special move.
* Hidden Power (Level 42): Varies based on individual Pokémon.
* Substitute (Level 46): Normal-type status move.
* Thunder (Level 50): Electric-type special move.
By TM/HM:
* TM06 Toxic: Poison-type status move.
* TM10 Hidden Power: Varies based on individual Pokémon.
* TM11 Sunny Day: Fire-type status move.
* TM12 Substitute: Normal-type status move.
* TM16 Light Screen: Psychic-type status move.
* TM17 Protect: Normal-type status move.
* TM21 Frustration: Normal-type physical move.
* TM24 Thunderbolt: Electric-type special move.
* TM27 Return: Normal-type physical move.
* TM31 Brick Break: Fighting-type physical move.
* TM32 Double Team: Normal-type status move.
* TM33 Reflect: Normal-type status move.
* TM39 Facade: Normal-type physical move.
* TM42 Facade: Normal-type physical move.
* TM47 Thunder: Electric-type special move.
* TM50 Overheat: Fire-type special move.
* TM55 Scald: Water-type special move.
* TM70 Flash Cannon: Steel-type special move.
* TM87 Swagger: Normal-type status move.
* HM01 Cut: Normal-type physical move.
* HM04 Strength: Normal-type physical move.
By Breeding:
* Growl: Normal-type status move.
* Quick Attack: Normal-type physical move.
* Thunder Fang: Electric-type physical move.
* Agility: Normal-type status move.
* Extreme Speed: Normal-type physical move.
Please note that this list includes all moves Raikou can learn in Pokémon LeafGreen, regardless of its encounter method.