Gastly - Generation 1 learnset
Below are all the moves that Gastly can learn in Generation 1, which consists of:
- Pokémon Red
- Pokémon Blue
- Pokémon Yellow
Note: The move categories shown here are based on the move's type, as was the mechanic in Generations 1-3. The moves' detail pages may show a different category for Generation 4+.
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Moves learnt by level up
Gastly learns the following moves in Pokémon Red/Blue at the levels specified.
Lv.MoveTypeCat.PowerAcc.1 Confuse Ray Ghost 
— 100 1 Lick Ghost 
30 100 1 Night Shade Ghost — 100 27 Hypnosis Psychic — 60 35 Dream Eater Psychic 
100 100 Moves learnt by HM
Gastly does not learn any HMs in Pokémon Red/Blue.
Moves learnt by TM
Gastly is compatible with these Technical Machines in Pokémon Red/Blue:
TMMoveTypeCat.PowerAcc.6 Toxic Poison — 90 20 Rage Normal 20 100 21 Mega Drain Grass 40 100 24 Thunderbolt Electric 90 100 25 Thunder Electric 110 70 29 Psychic Psychic 90 100 31 Mimic Normal — — 32 Double Team Normal — — 34 Bide Normal — — 36 Self-Destruct Normal 200 100 42 Dream Eater Psychic 100 100 44 Rest Psychic — — 46 Psywave Psychic — 80 47 Explosion Normal 250 100 50 Substitute Normal — — -
Moves learnt by level up
Gastly learns the following moves in Pokémon Yellow at the levels specified.
Lv.MoveTypeCat.PowerAcc.1 Confuse Ray Ghost — 100 1 Lick Ghost 30 100 1 Night Shade Ghost — 100 27 Hypnosis Psychic — 60 35 Dream Eater Psychic 100 100 Moves learnt by HM
Gastly does not learn any HMs in Pokémon Yellow.
Moves learnt by TM
Gastly is compatible with these Technical Machines in Pokémon Yellow:
TMMoveTypeCat.PowerAcc.6 Toxic Poison — 90 20 Rage Normal 20 100 21 Mega Drain Grass 40 100 24 Thunderbolt Electric 90 100 25 Thunder Electric 110 70 29 Psychic Psychic 90 100 31 Mimic Normal — — 32 Double Team Normal — — 34 Bide Normal — — 36 Self-Destruct Normal 200 100 42 Dream Eater Psychic 100 100 44 Rest Psychic — — 46 Psywave Psychic — 80 47 Explosion Normal 250 100 50 Substitute Normal — —