To ROM hack a Genesis game, you'll need a few tools: a hex editor to modify the game's binary code, a graphics editor for changing sprites and backgrounds, and possibly a level editor specific to the game you're targeting. First, create a backup of the original ROM file. Then, use the hex editor to locate and modify specific values or data to change gameplay mechanics or features. After making your changes, you can test your modified ROM using an emulator to see the effects of your edits.
go to a website where you can make ROM hacks or a Mario website etc and you may have to download a software (not sure) and you can make the ROM hack.(etc= other)
TO map hack on Pokemon emerald get a celebi and talk to may. then go to altering cave and look at your map for 3 minutes.
you cant
you hack
you cant
Just by using tools.
theres a video on how to hack pokemon android versions on youtube.
You cannot, unless you hack a Pokemon ROM.
no it is a ROM hack from firered
There are lots of fun pokemon rom hacks, i would recommend pokemon light platinum, pokemon sienna (it's not a finished hack though) and pokemon ash gray :)
no
You don't, unless it's a ROM hack, which doesn't include AR.