Buy a Pokemon Fire red game, That's in English. Its not the Game Boy, Its the Cartridge. So don't go getting new Game Boy's. It will just waste Money!
I think you have to go create a new account, other than that I have no clue.
Japanese & English
You can't.
Probably English and Japanese.
Unfortunately, no. The Japanese games would have to be manually programmed to support English, and very very few are. The Pokemon games, for example, do not have English translations in them.
Unfortunately you cannot change the game's language.
yes but the language isn't translated
You may say 'makka.'
If it's Japanese it is less likely for it to have an English option.
ofcource you can
Because it's a partially completed unofficial translation.
Yes, you would be able to migrate a Pokémon from a Japanese-language Pokémon Emerald game over to a Japanese-language Pokémon HeartGold game however you will not be able to migrate a Pokémon from a Japanese-language Pokémon Emerald game over to an English-language Pokémon HeartGold game because the migration feature is language-blocked meaning the migration feature will only recognize games that match the same language as the DS game.
Braille, there is no language called "regi" , regi are the three legendary rock Pokemon and regigigas.