Rayquaza debuted as the legendary mascot of Pokemon Emerald, released in Japan in 2004 as part of the third generation. Mega Rayquaza arrived later in Pokemon Omega Ruby and Alpha Sapphire in 2014, giving the sky dragon an even stronger form. A shiny version changes its black body colouring, while perfect IVs and level 100 mark a fully trained competitive specimen. Clips celebrating that combination spread through Pokemon communities on YouTube and soundboards, where the roar became shorthand for an ultimate, hard earned legendary reveal among fans.