You can catch mew in pokemon Fire red after you get your national pokedex you catch it in the power plant.
Beat the elite 4 12 times and go 2 the victory road after you catch or beat it celebi popps out
You don"t. You go to an event.all of them are over
Bitch you lying hard than a hoe
You can't cathc it normally . . You have to cheat. .
The way I did it was I picked a random sign (ex.trainer tips) and I ran around it for two hours. Mew popped up and I caught it. Another way is to just use a game shark.
Get a shiny mewtwo then raise it to lvl 100 and go back to where you caught it you must have beaten the game on all the islands, the elite four, and you must have gotten the national dex.