How to Get a Documentation Password?

You can find the password of the document in the game.

How to Download Pre-Patched Pokémon Dungeon Infdev GBA ROM?

You can get the Pre-Patched GBA ROM from this page.

You can also get the CIA File here.

Filename	Size	Note
Pokemon Mystery Dungeon Infdev 3DS CIA	11.19 MB	COMPLETED
Pokemon Mystery Dungeon Infdev GBA	10.44 MB	COMPLETED

GameBoy Advance

GameBoy Advance

GameBoy Advance

Game Boy