Your final product should simply end with the extension .gba . If you need assistance with the next steps, tell me:
The 1986 Pokemon Emerald (U)(TrashMan) ROM: A Definitive Guide
The seemingly random numbers and text strings attached to standard ROM files come from historical preservation groups.
The "1986" in the name does not refer to the year 1986. Instead, it is the assigned by scene groups who cataloged Game Boy Advance (GBA) games as they were released. Trashman is the handle of the person who originally "dumped" (copied) the game from a physical cartridge into a digital file.
Despite the "1986" in the title, the game was actually released in 2004 (Japan) 2005 (International)
: Click the Patch or Apply button to generate your brand new, playable modded file. How to Run the Completed ROM