ExtremeSpeed inflicts damage and is an increased priority move. If the target does not use an increased priority move during the round that it is used, ExtremeSpeed will go first regardless of the user's or target's speed. If the target also uses a move with an increased priority of +1 during the same round that the user uses ExtremeSpeed, the attack order of the users will be determined normally. If the user is put to sleep or frozen during the round that ExtremeSpeed is (or is attempted to be) used, ExtremeSpeed's increased speed priority will not be reset. Subsequently, it will only be reset on the turn after the user wakes up or is defrosted, or if the user switches out.
Template:Breedlist
|-
| style="background: #FFF; font-family:monospace,monospace" | 0147
| style="background: #FFF; text-align: center;" |
| style="background: #FFF" | Dratini
| colspan="2" style="background:#5060E1; text-align: center;" | Dragon
| style="background: #FFF" | Dratini, Dragonair, Dragonite
|-
| colspan="6" | Bold indicates a Pokémon which gets STAB from this move. Italic indicates a Pokémon whose evolution gets STAB from this move. *Indicates Pokémon that can only learn the move through chain breeding.
|}
|}
Template:Breedlist
|-
| style="background: #FFF; font-family:monospace,monospace" | 0147
| style="background: #FFF; text-align: center;" |
| style="background: #FFF" | Dratini
| colspan="2" style="background:#5060E1; text-align: center;" | Dragon
| style="background: #FFF" | Dratini, Dragonair, Dragonite
|-
| colspan="6" | Bold indicates a Pokémon which gets STAB from this move. Italic indicates a Pokémon whose evolution gets STAB from this move. *Indicates Pokémon that can only learn the move through chain breeding.
|}
|}
Other appearances
Lucario has ExtremeSpeed for its recovery move (↑+B) in Super Smash Bros. Brawl. Tilting the control stick in different directions alters which direction Lucario moves. It does not inflict any damage on opponents.
Arcanine runs so fast that its legs become a blur, or Arcanine becomes surrounded by white and clear aura as it charges into its opponent at a fast speed.
Despite its in-game description, in generations II through IV, the move ExtremeSpeed had the same priority as many other increased priority moves, and a few other moves such as Feint and Helping Hand would even go before it. As of Generation V, however, its +2 priority makes it faster than all other increased priority damaging moves (though some non-damaging moves still surpass it).