Extreme Speed is Lucario's up special move in his playable Super Smash Bros. appearances. It originates from the Pokémon franchise as a Normal-type move, and it is spelled ExtremeSpeed in Super Smash Bros. Brawl like in earlier Pokémon core series titles due to text limitations.
Upon using the move, Lucario launches high into the air. The move can be aimed while shooting up, making a sharp curve to the right or to the left. As it is capable of clinging to walls and jumping off of them, the move lets Lucario easily jump to a wall. It also lets it easily grab ledges. However, Extreme Speed only damages opponents at its peak (not doing any damage in Super Smash Bros. Brawl) and lightly knocks them back. If this move ends in mid-air, Lucario is put into a helpless state. In Super Smash Bros. for Nintendo 3DS / Wii U, this move is affected by Lucario's Aura mechanic, increasing the distance Lucario travels the more damage it takes.
Extreme Speed has two variants in Super Smash Bros. for Nintendo 3DS / Wii U: Ride the Wind and Extreme Speed Attack. Ride the Wind allows Lucario to more easily control its direction as well as travel farther, but makes it move slower and deal no damage. Extreme Speed Attack removes the sweet spot and knockback, but makes the move an attack that consistently hits multiple times.
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