Gen 3] Shiny Mewtwo in FireRed : r/ShinyPokemon

3] Shiny Mewtwo after 10 years of hunting : r/ShinyPokemon

Pokemon Firered Version 386 Competitive Shiny Pokémon

Live Shiny Mewtwo Firered!

Gen 3] 2 days after getting Mewtwo in under 200 SR's, i get this in under 100 SR's on the same game/save(Silph Co. Fire Red) : r/ShinyPokemon

One Man's Five-Year Quest To Find A Shiny Pokémon

gen3] [emulator] Getting a Shiny Mewtwo on Fire Red in 8 soft resets. : r/ ShinyPokemon

Shiny Pokémon, Ultimate Pop Culture Wiki

Shiny Mewtwo and Mew After 19,128 and 12,875 Encounters in Third Gen!!

Shiny Mewtwo in Pokemon FireRed after 3,749 soft resets