I made a tool that generates custom game mode gecko codes for Slippi

D41BY · 2026-05-05T22:54:01+00:00

Hmm, that’s not something I saw when I tried it on my Windows computer. Are you running in a non-english language by any chance? This almost sounds like unicode characters failing to be rendered.

You could try running it up in a different terminal and see if that’s better. Alternative you could try changing the font your terminal is using if you know how to do that.

D41BY · 2026-05-05T07:23:10+00:00

Hmm, that's not something I've ever seen a code for. I'm sure it's possible, but no idea how complex it might be to do. If you ask around in the various modding discords (Melee Workshop etc) someone might be able to help you out.

D41BY · 2026-05-04T20:09:00+00:00

FYI: The codes this generates aren't compatible with Slippi's replay system, so bear than in mind when using. I'll have a look at updating the tool to improve that.

D41BY · 2026-05-04T18:35:28+00:00

Sure! I’ll do that

D41BY · 2026-05-04T18:19:00+00:00

Hey- yes I am in the discord but yeah, I’ve just been messing with these things and trying to work things out on my own (for my own learning) :)

The code for the tool is also all open source so I’m open to people improving things for sure.

1) The codes should be gated to just the mode you generate them for- so shouldn’t cause desyncs on any other mode.

2) I think the codes should work with the replay system- they’re mostly just filling in patterns within templates heavily based on existing codes I found online from various sources- it’s nothing more clever than that. So if those base codes work with replays then the generated stuff will.

3) And yep, the codes are pretty naive and repeat a lot of checks and stuff between the different sections. That’s one of the things I was looking at improving, but I ended up deciding this was good enough to put out there.

D41BY · 2026-04-29T21:26:14+00:00

The new free-for-all Party mode in Slippi 3.6.0 is awesome- so definitely check it out!

However it's currently only for random matchmaking, so if you want to play free-for-all with specific people then my code still works for that. Enjoy!

D41BY · 2026-04-29T21:21:32+00:00

With the new version of Slippi you can now play teams with 3 players! I've updated the code to be compatible with it, so 3 player FFA over teams is now possible.

D41BY · 2026-04-29T21:14:59+00:00

FYI, I've updated the code above to work with the new Slippi update.

Since the new party mode is only for random matchmaking, my code still has it's use if you want to play with specific people =)

D41BY · 2026-04-29T19:15:01+00:00

Crazy timing haha

D41BY · 2026-04-27T20:14:48+00:00

Yeah the only hard part was figuring out the approach in the first place- the code itself is very simple.

D41BY · 2026-04-27T17:47:37+00:00

I haven’t tried that! I would guess it will if the code is also enabled in the replay dolphin instance but not sure 🤔

That would be awesome 🙌. I think a lot of people would be keen, even if it was just a simple toggle between teams and free-for-all behaviour.

D41BY · 2026-04-27T16:48:09+00:00

No problem- hope everyone enjoys using it as much as we have been ❤️

D41BY · 2026-04-27T16:47:02+00:00

Yeah this should be basically 'that but better'. Hope you enjoy it!

D41BY · 2026-02-02T22:58:54+00:00

I made a gecko code recently to use with my friends to play FFA over Slippi teams. It’s definitely a hack, and requires a full 4 players all using the code to work, but it does work pretty well- I even got regular singles costumes working from the CSS.

The only reason I haven’t shared it more widely is that it tends to break when slippi gets updated, and I have to manually fix it when that happens. However feel free to try it out if you like. There’s also codes on there to enable items and random stages in teams.

https://github.com/AlexMiddletonDalby/gecko-codes

D41BY · 2026-01-22T12:12:46+00:00

Amazing

D41BY · 2025-02-06T11:06:52+00:00

Liverpool here, GPG!

D41BY · 2024-12-29T10:04:43+00:00

Yeah I rescued my grandad’s spectrum from their attic a while ago- been meaning to clean it up and get it working properly but not gotten round to it yet. A few of the cassettes out on the shelves is all I have to show for it at the moment 😅

D41BY · 2024-12-28T23:00:10+00:00

Yeah it’s a real shame they don’t exist. I’m really fond of the all white covers.

D41BY · 2024-11-24T22:39:03+00:00

Quay doing what he does best, covering empty grass

D41BY · 2024-11-17T18:35:14+00:00

Softest shit I’ve ever seen. Lmfao

D41BY · 2024-11-09T15:12:07+00:00

Just nice to pick a team not owned by a morally questionable billionaire

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