Hacking Wii Sports Save Data Editing (Miis)

MothyMoss · Monday at 9:33 PM

Is it possible to edit the save data of Wii Sports to allow us to swap Mii stats to another?

Basically, I have two Wiis and want to transfer everything from one to the other. The only thing blocking me from doing so is that WIi Sports just straight up deletes your save data if the Mii is no longer present.

Here's what happened:

- I went in save game manager gx, exported all my miis and all my saves
- Went on the other wii, imported everything
- Save data is imported, but now miis aren't editable
- Edit mii's console id with MyAvatarEditor (or even using HxD)
- Mii can be edited now, but Wii sports recognises it as a new mii (thus all save data tied to it is gone)
- Tried editing the hex of the wii sports save (RPSports.dat) and found all the instances of the old console id and replaced them with the new ones
- Game save data is corrupted

I tried searching everywhere online but the conlusion just comes to accepting the mii's won't be editable or accepting your save data gone, and I was wondering if there was a way to make it work.

Extra info (would like to have it resolved):
- all my saves either properly transferred (didn't use miis), or the games allowed me to replace the "missing" mii
- Wii Sports deletes the save since they are technically "new" miis
- both Wheel of Fortune and Jeopardy defaults the Miis to the pretty ugly default characters (can't go back to being a Mii), but save data remains

--- update as of August 18th --

Just found a mod that solves my problem, but it's a bit *too* custom to my liking.

https://gamebanana.com/mods/498754

It's the Mii Channel Custom Symbol Keyboard made by Ro, and while it does allow for editing Miis with blue pants, the app adds too much. I'm trying to keep my setup as vanilla as I can, so if there was a way to modify this mod to only have editing blue pants Miis, and turning those pants back to their original colors (either black or red) would be awesome.

-- update as of August 19th --

found a gecko code, "Temporary Mii Unlock by Thomas83Lin" (04047440 60000000)
it basically does the same thing (letting you edit miis with blue pants / non-matching console ids), but having blue pants for some miis and gray/red ones for new miis I'll make will definitely be off-putting. still looking for a proper solution

ZodiaKGalXy · 2026-08-20T22:44:35+0100

If your save of Wii Sports has remained untouched, I think the save data of a specific Mii might be tied to their IDs. The Console ID is meant to represent your Wii's MAC Address, whereas the Mii ID holds information of the status (normal, transferable, and special) and timestamp. Since you have two Wiis, there are two MAC Addresses used when a Mii on the Mii Channel is generated. Importing one Mii from a console to another makes it a transferable Mii, until you've matched their Console ID to the MAC address of your other Wii. Therefore, if the console ID matches your MAC while the Mii ID's first value is 8, it becomes an editable normal Mii on your Wii.

Now, what I'll say next is just a theory, but based on what I'm reading... Wii Sports might've held a record of your Mii's Console ID to validate the save data. And because you changed the chosen Mii's Console ID from your first Wii to your second (just to edit it), Wii Sports no longer recognizes the Mii because it truly is a "new Mii" made on your console.

If the record of the old Console ID is still there in the save data, you should just keep the original Console ID on the imported Mii. While you can't edit it, Wii Sports might be able to recognize it and reconnect the old save data. Judging by the steps you did (in the kindest way), you've never tested if a transferred Mii worked on the imported Wii Sports data. Maybe try doing that to restore the save data.

MothyMoss · 2026-08-20T23:00:33+0100

ZodiaKGalXy said:
If your save of Wii Sports has remained untouched, I think the save data of a specific Mii might be tied to their IDs. The Console ID is meant to represent your Wii's MAC Address, whereas the Mii ID holds information of the status (normal, transferable, and special) and timestamp. Since you have two Wiis, there are two MAC Addresses used when a Mii on the Mii Channel is generated. Importing one Mii from a console to another makes it a transferable Mii, until you've matched their Console ID to the MAC address of your other Wii. Therefore, if the console ID matches your MAC while the Mii ID's first value is 8, it becomes an editable normal Mii on your Wii.

Now, what I'll say next is just a theory, but based on what I'm reading... Wii Sports might've held a record of your Mii's Console ID to validate the save data. And because you changed the chosen Mii's Console ID from your first Wii to your second (just to edit it), Wii Sports no longer recognizes the Mii because it truly is a "new Mii" made on your console.

If the record of the old Console ID is still there in the save data, you should just keep the original Console ID on the imported Mii. While you can't edit it, Wii Sports might be able to recognize it and reconnect the old save data. Judging by the steps you did (in the kindest way), you've never tested if a transferred Mii worked on the imported Wii Sports data. Maybe try doing that to restore the save data.

Apologies, I don't think it was clear in my explanation what I was expecting to happen. Thank you for replying though!

I have backups of my saves and Miis so that's fine. If I import them both to my new Wii regularly (in order) without modifying anything, the Wii Sports save works as intended. It recognises them and loads their data correctly, and so does every game that uses Miis. (I have both Wii's here with me, and accessible at any moment)

The thing that bothered me, was not being able to edit them.

I found a gecko code that allows me to edit any Mii, so that's solved (although I must launch the channel within usb loader GX to use the code), but now my only problem is that all my transferred Miis will have blue pants, and any new Miis I make will have black/red pants (in the Mii channel). This inconsistency bothers me quite a bit.

This is purely cosmetic and doesn't change the fact that my saves and Miis have properly transferred over. All I am curious about now is if there's a way to somehow get the best of both ends: my Wii Sports save working, being able to edit all my Miis, and none of them having blue pants. (And optionally, not having to open usb loader GX to load the Mii channel, but I'm okay with that)

Hacking Wii Sports Save Data Editing (Miis)

New Member

Well-Known Member

New Member

Similar threads

Popular threads in this forum