Physical · TM40
Skull Bash
Normal- Power 100
- Accuracy 100
- PP 15
- Category Physical
- Machine TM40
- Learners 99
Normal-type physical move - in Generation I the physical/special split is decided by the move type, not the move itself. Power 100, Accuracy 100%, PP 15. Taught by TM40 (single use in Generation I).
Secondary effect: Raises the user’s Defense by one stage. User charges for one turn before attacking.
Target: Selected Pokemon
Who learns it
| Pokemon | Types | How |
|---|---|---|
| Squirtle | Water | Lv.35 |
| Wartortle | Water | Lv.39 |
| Blastoise | Water | Lv.42 |
| Charmander | Fire | TM40 |
| Charmeleon | Fire | TM40 |
| Charizard | Fire Flying | TM40 |
| Squirtle | Water | TM40 |
| Wartortle | Water | TM40 |
| Blastoise | Water | TM40 |
| Beedrill | Bug Poison | TM40 |
| Rattata | Normal | TM40 |
| Raticate | Normal | TM40 |
| Ekans | Poison | TM40 |
| Arbok | Poison | TM40 |
| Pikachu | Electric | TM40 |
| Raichu | Electric | TM40 |
| Sandshrew | Ground | TM40 |
| Sandslash | Ground | TM40 |
| Nidoran (F) | Poison | TM40 |
| Nidorina | Poison | TM40 |
| Nidoqueen | Ground Poison | TM40 |
| Nidoran (M) | Poison | TM40 |
| Nidorino | Poison | TM40 |
| Nidoking | Ground Poison | TM40 |
| Clefairy | Normal | TM40 |
| Clefable | Normal | TM40 |
| Vulpix | Fire | TM40 |
| Ninetales | Fire | TM40 |
| Jigglypuff | Normal | TM40 |
| Wigglytuff | Normal | TM40 |
| Paras | Bug Grass | TM40 |
| Parasect | Bug Grass | TM40 |
| Meowth | Normal | TM40 |
| Persian | Normal | TM40 |
| Psyduck | Water | TM40 |
| Golduck | Water | TM40 |
| Mankey | Fighting | TM40 |
| Primeape | Fighting | TM40 |
| Growlithe | Fire | TM40 |
| Arcanine | Fire | TM40 |
| Poliwag | Water | TM40 |
| Poliwhirl | Water | TM40 |
| Poliwrath | Fighting Water | TM40 |
| Abra | Psychic | TM40 |
| Kadabra | Psychic | TM40 |
| Alakazam | Psychic | TM40 |
| Machop | Fighting | TM40 |
| Machoke | Fighting | TM40 |
| Machamp | Fighting | TM40 |
| Tentacool | Poison Water | TM40 |
| Tentacruel | Poison Water | TM40 |
| Ponyta | Fire | TM40 |
| Rapidash | Fire | TM40 |
| Slowpoke | Psychic Water | TM40 |
| Slowbro | Psychic Water | TM40 |
| Farfetch'd | Flying Normal | TM40 |
| Doduo | Flying Normal | TM40 |
| Dodrio | Flying Normal | TM40 |
| Seel | Water | TM40 |
| Dewgong | Ice Water | TM40 |
| Gengar | Ghost Poison | TM40 |
| Onix | Ground Rock | TM40 |
| Drowzee | Psychic | TM40 |
| Hypno | Psychic | TM40 |
| Electrode | Electric | TM40 |
| Cubone | Ground | TM40 |
| Marowak | Ground | TM40 |
| Hitmonlee | Fighting | TM40 |
| Hitmonchan | Fighting | TM40 |
| Lickitung | Normal | TM40 |
| Rhyhorn | Ground Rock | TM40 |
| Rhydon | Ground Rock | TM40 |
| Chansey | Normal | TM40 |
| Tangela | Grass | TM40 |
| Kangaskhan | Normal | TM40 |
| Horsea | Water | TM40 |
| Seadra | Water | TM40 |
| Goldeen | Water | TM40 |
| Seaking | Water | TM40 |
| Staryu | Water | TM40 |
| Starmie | Psychic Water | TM40 |
| Mr. Mime | Psychic | TM40 |
| Scyther | Bug Flying | TM40 |
| Jynx | Ice Psychic | TM40 |
| Electabuzz | Electric | TM40 |
| Magmar | Fire | TM40 |
| Tauros | Normal | TM40 |
| Gyarados | Flying Water | TM40 |
| Lapras | Ice Water | TM40 |
| Eevee | Normal | TM40 |
| Vaporeon | Water | TM40 |
| Jolteon | Electric | TM40 |
| Flareon | Fire | TM40 |
| Porygon | Normal | TM40 |
| Omastar | Rock Water | TM40 |
| Kabutops | Rock Water | TM40 |
| Snorlax | Normal | TM40 |
| Dratini | Dragon | TM40 |
| Dragonair | Dragon | TM40 |
| Dragonite | Dragon Flying | TM40 |
| Mewtwo | Psychic | TM40 |
| Mew | Psychic | TM40 |