If you mean, if they can have a GENTLE nature, then yes that's possible. Simply put a Pokemon that has the Sychronize ability and has the Gentle nature up first, and when you fight Mewtwo in some game, whether from FireRed or LeafGreen, or used the wild Pokemon modifier in Emerald, Diamond or Pearl versions, have the Pokemon first and hit Mewtwo at least once. Then when you catch Mewtwo, the chance of it having the Gentle nature is increased by at least 50% or so.
If you mean, by pokedex, then I don't think so. Try to specify your questions next time, alright~?
Well, when you beat the game you can register the sign that appears in the intro (mewtwos sign. Hope i helped a little!
Mewtqo,s moves are Psychic Safeguard Recovery and Swift P.S. Mewtwo is on Lv 70
It depends on your Pokemon's level. If it is in the 50-60 range, then train near Indigo Plateau.
beat the E4, but mewtwos in that cave. articunos in seafoam cave, east of cannivare island(the one with the fire gym)
yes
there is none.
Western Cave
No, but it's a sign that you need a hobby.
You have to beat elite 4 to get into Mewtwos cave
It is difficult to steriotype breeds like that. There will be some gentle Lipizzaner horses, and some not so gentle.
On firered, you need to beat every trainer in the game and have rock smash and strengh
give it to celio and then mewtwos cave will be unlocked
buy it in the wigglytuff friend areas(after beating rayquaza)
One of them is the "Gentle Giant" because they are huge and so gentle.
There are many types of animals that are gentle. However, even gentle animals can bite. Some gentle animals include dogs, cats, rabbits, and penguins.
in sky you have to go in spinda cafe and wait until mewtwos challenge arrives
Some Chimpanzees are aggressive and some are gentle.