From Bulbapedia, the community-driven Pokémon encyclopedia.
Skull Bash (Japanese: ロケットずつき Rocket Headbutt) is a damage-dealing Normal-type move introduced in Generation I. In Generation II, it was the signature move of the Squirtle evolutionary line. It was TM40 in Generation I.
Skull Bash does nothing on the turn it is selected, other than say that the user lowered its head. On the following turn, Skull Bash will do damage, PP will be deducted from it, and it will count as the last move used. Once Skull Bash is selected, the user won't be able to switch out until it is disrupted or fully executed.
If Skull Bash is not fully executed, PP will not be deducted from it, and it will not count as the last move used. If the opponent uses Mirror Move during the turn that the user lowers its head, Mirror Move will copy the move that the user executed immediately before using Skull Bash (or fail if it can't).
Sleep, freeze, partial trapping, and flinching will pause but not disrupt the duration of Skull Bash.
In Stadium, Mirror Move will copy Skull Bash on either of the turns it takes to execute.
Generations II and III
On the turn it is selected, Skull Bash will raise the user's Defense by one level.
Generations IV and V
If a Power Herb is held by the user, Skull Bash can be executed in one turn.
Skull Bash's power is changed from 100 to 130 and its PP changed from 15 to 10.
|| In the first turn, the attacker tucks in its head. The next turn, it head-butts at full steam.
|| In the first turn, the attacker tucks its head. The next turn, it head-butts at full steam.
|| 1st turn: Prepare|
2nd turn: Attack
|| Tucks in the head, then attacks on the next turn.
|| The user raises its Defense in the 1st turn, then attacks in the 2nd turn.
|| Raises defense, then attacks on the next turn.
|| The user gains the Skull Bash status, causing it to attack strongly on the next turn. It is not possible to link this move.
|| The user tucks in its head to raise its Defense in the first turn, then rams the foe on the next turn.
| The user tucks in its head to raise its Defense in the first turn, then rams the target on the next turn.
In other games
In the anime
In the main series
In Pokémon Origins
In the manga
In the Ash and Pikachu manga
In The Electric Tale of Pikachu manga
In the Pokémon Adventures manga
| The user tucks in its head to raise its Defense in the first turn, then rams the foe on the next turn.
|| First Chapter Used In
|| Onix floats into the air and curls its body around. It then fires itself at the opponent with huge speed and power.
| Brock's Onix
|| Onix is On!
In the Pokémon Pocket Monsters manga
In other generations
In other languages