Technical Machines (TMs) are single-use items that teach a specific move to a compatible Pokémon. They are often rewards for defeating Gym Leaders, found in dungeons, or purchased at the Game Corner.

Notable TMs and their locations:
- TM01 Mega Punch: Mt. Moon
- TM05 Mega Kick: Mt. Moon
- TM08 Body Slam: S.S. Anne
- TM11 BubbleBeam: Cerulean City Gym (Misty)
- TM13 Ice Beam: Celadon City Dept. Store (4th Floor)
- TM14 Blizzard: Pokémon Mansion
- TM15 Hyper Beam: Celadon City Dept. Store (4th Floor)
- TM24 Thunderbolt: Vermilion City Gym (Lt. Surge)
- TM26 Earthquake: Silph Co.
- TM28 Dig: Cerulean City (Team Rocket Grunt's house)
- TM29 Psychic: Saffron City (Mr. Psychic's house)
- TM34 Bide: Pewter City Gym (Brock)
- TM38 Fire Blast: Cinnabar Island Gym (Blaine)
- TM44 Rest: Celadon City (Game Corner Prize)
Choose carefully which Pokémon learns which TM, as they are one-time use. Some TMs teach very powerful moves that can significantly improve your Pokémon's battle capabilities.