ROM Hack I'm looking for GBA rom hacking tool and tutorial

[Noctosphere]

So yea, the title says all pretty much

I remember I was toying with the map editor years ago
But the site where I got it seems closed
So, if anyone can help me...
thanks

 

[FAST6191]

You are asking an odd question.

There are games with tools made for them that allow you to edit things. Pokemon is the most notable for the extent of its tools, https://www.pokecommunity.com/forumdisplay.php?f=284 is probably where you will get pointed at for this. Some other games have some tools but not as much as pokemon does. Last I heard some of the tools were a bit iffy so you had to be careful what sorts of changes you make and always keep a backup of your last working version but that is just good practice.

ROM hacking itself tends to involve knowing what the game is doing and how to change it. If you want a guide to that then https://gbatemp.net/threads/gbatemp-rom-hacking-documentation-project-new-2016-edition-out.73394/ covers both the GBA and DS.