Headers need to be the same rom size as your rom or higher, which is why the Metal Gear Solid 3 rom works with everything. I even edited my Mario Kart 7 header to be rom size of 4 GB. So it works just like the Metal Gear Solid 3 header.
But there's no need to change ANYTHING, Gateway Rom Patcher automatically fixes rom size for you, so you can use any game header. Even small 512 MB rom headers that were offline games.
It may be best to use headers from offline games like Zelda A Link Between Worlds because nobody can go online in that game, so you can get rid of the game after if you want.
But there's no need to change ANYTHING, Gateway Rom Patcher automatically fixes rom size for you, so you can use any game header. Even small 512 MB rom headers that were offline games.
It may be best to use headers from offline games like Zelda A Link Between Worlds because nobody can go online in that game, so you can get rid of the game after if you want.