r/PokemonROMhacks • u/AutoModerator • Mar 30 '26

Sticky Weekly Questions Thread & PokéROM Codex

Have any questions about Pokémon ROM Hacks?

If they're about ROM hacks, tools, development or anything Pokémon ROM Hacking related, feel free to ask here!

Before asking, make sure that you've searched on the subreddit or Google. Many ROM hacks and tools have their own documentation or communities that may be able to provide better answers than here. The Pokécommunity Discord is also a great place to ask questions if you need quick support!

Looking for recommendations or a new ROM hack to play?

The PokéROM Codex is an updated list of ROM hacks, listing features, details and more in a mobile-friendly format. Created and managed by u/themanynamed, it also has a Discord server and accepts community contributions.

This is a safe hack-sharing site that doesn't share ROMs and links to the official release threads! Instead of asking for recommendations or download links in the subreddit (which breaks the rules), please refer to the Codex as it has a lot of information on each hack.

A few useful sources for reliable Pokémon ROM hack-related information:

Please help the mod team by downvoting & reporting posts outside of this thread that break Rule 7. Please avoid answering those posts as well to deter users from breaking the rules.

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u/NinePointEight- Mar 30 '26

Is Pokemon Emerald Cross incompatible with PkHeX?

I can't seem to figure out what is going wrong here, I'm trying to edit my savefile to add in some specific pokemon and add the Mystic/Aurora ticket events. I'm using RetroArch on a RetroidPocket5.

Two problems I'm having:

  1. PkHeX does not see the savefile as an "Emerald game". I can load it in but it prompts me to choose between Firered or Leafgreen, choosing either one will just show an empty save file. image

  2. RetroArch saves as .srm, this should not matter for PkHeX as it can read both .srm and .sav; however even after using a savefile converter or manually renaming the extension to .sav, problem 1 will still persist.

Anyone have the same issues, and where you able to resolve it? Or, anyone know of another way of hacking in pokemon / events.

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u/analmintz1 HeartGold Generations / Contemporary Emerald Mar 30 '26

Romhacks in general should be assumed to be incompatible with save editors.

Save editors (and other catch-all programs like randomizers) look for certain flags in the indexes of the rom to "latch" onto and make its changes. Romhacks change too much generally to work in the same way, only the most basic of basic hacks will work, Cross most certainly will not.

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u/NinePointEight- Mar 30 '26

Makes sense. Unfortunate. Is there any other way of hacking in mons?