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|First appearance||Pokémon Ruby and Sapphire (2002, Pokémon series)|
Super Smash Bros. Brawl (2008, Mario-related media)
|Latest appearance||Pokémon Brilliant Diamond and Shining Pearl (2021, Pokémon series)|
Super Smash Bros. Ultimate (2018, Mario-related media)
In Subspace Emissary, it suddenly emerges from a lake after hearing Diddy Kong, who had been looking at the nearly destroyed Arwing nearby. It attacks the Arwing with an energy ball and grabs Diddy Kong. Diddy screams for help, so Fox McCloud, who manages to escape the damaged Arwing, leaps from it and breaks Diddy free of Rayquaza's grasp using Fox Illusion. Rayquaza, furious, launches another energy ball at Fox, who deflects it back at Rayquaza with his Reflector, causing it to fall back into the lake.
Fox and Diddy engage in a fight with Rayquaza, resulting in the second main boss fight of the Subspace Emissary. Some of its attacks involve burrowing into the ground and then bursting upwards. It also flies with great speed horizontally over the stage and sometimes drops a lightning bolt. The player can defeat it by attacking it around the head.
Although Rayquaza does not appear to have any connections with the Subspace Army, it is fought again in The Great Maze. Rayquaza also appears as both a trophy and a sticker, making it the only Pokémon that is neither playable nor summoned from a Poké Ball to have its own sticker.
Rayquaza also appears in Super Smash Bros. for Wii U and Super Smash Bros. Ultimate as a hazard on the stage Kalos Pokémon League. It sometimes appears in the Dragon-type chamber, where it periodically flies from one side of the screen to another, damaging anyone that it comes into contact with. It also appears a trophy in Super Smash Bros. for Wii U and as a spirit in Super Smash Bros. Ultimate.
Super Smash Bros. Brawl
|Rayquaza||File:BrawlTrophy216.png||GBA Pokémon Ruby & Sapphire||A Sky High Pokémon. It normally resides high up in the ozone layer where it flies endlessly, so it is rarely seen. However, when Groudon and Kyogre began to fight, it appeared to calm them down. It has the ability Air Lock, which blocks all weather-condition effects. It has exceedingly strong abilities, and its attack power is especially remarkable.|
|GBA Pokémon Emerald|
Super Smash Bros. for Wii U
|Rayquaza||File:RayquazaTrophyWiiU.png||GBA Pokémon Ruby & Pokémon Sapphire (03/2003)
DS Pokémon HeartGold & Pokémon SoulSilver (03/2010)
|This Dragon/Flying-type Pokémon usually dwells high in the ozone layer, so it can't be seen from the ground. In the Kalos Pokémon League stage, it occasionally flies at great speed through the Elite Four's Dragon-type chamber, where any fighters in its path will be damaged and launched with great force.|
|File:Sticker Rayquaza.png||Pokémon series||[Aura] - Attack +24|
Usable by: Lucario
|Name||Image||Game||Type||Class||Effect||How to obtain||Spirit battle|
|Rayquaza||File:SSBU Rayquaza Spirit.png||Pokémon Series||Primary (3)||Ace||Neutral
|World of Light (Light Realm); Spirit Board||Ridley||*Dangerously high winds are in effect after a little while||Kalos Pokémon League||Battle! Lorekeeper Zinnia|
Names in other languages
|A transliteration of「烈空座」(means "the one in the violent sky")|
|Same as the Japanese name|
|Rayquaza; transliteration from Japanese name|
|Same as the Japanese and English name|
- Unlike other bosses of The Subspace Emissary, Rayquaza never interacts with characters from its own series.