I tried using the mod.  I got it to work and unless I'm using it wrong it seems identical to this mod: https://github.com/Orange-Dolphin/Carousel-Character-Select-for-Ikemen-GO

It's made by the same person so maybe this is an update? I'm legitimately not sure theirs not much to go on. But I'll explain how I got both working.

The first one (Alternate Character Select)
I put the LUA file in the ikemen mods folder, and just wholesale copied the system.def file that came with the mod.  It didn't seem to like my system .def and that got it working.

As for the extra folders that came with it, I THINK (and I am NOT sure, this shot way in the dark) that they where suppose to take characters from the text documents in the input folder and generate a select.def. I assume it would do this using the selectCreator.py file.
The thing is that file is blank and I found no reference to the input folder in the LUA file (Not that I know how to read LUA so maybe I just missed something)  So I think that it wasn't finished and doesn't do anything at this time. I think. Don't quote me on that.


The second one (Carousel Character Select):
I put the LUA file in the Ikemne Mods folder, and then put the following code at the bottom of my select screen section in my system.def

Code:

p1.fp.main.pos = 30,30
p1.fp.main.scale = 1.4,1.4
p1.fp.up = 1
p1.fp.down = 5
p1.fp.main.right = 1
p1.fp.main.left = 1
p1.fp.slide.time = 1

p2.fp.main.pos = 265,30
p2.fp.main.scale = 1.4,1.4
p2.fp.up = 1
p2.fp.down = 5
p2.fp.main.right = 1
p2.fp.main.left = 1
p2.fp.slide.time = 1
hideoncompleteselection = 0

And that made it work.

To reiterate: I think these mods do the same thing, I'm not super familiar with ikemen mods so I could be totally wrong.

Version: nightly
Build Time: 2025-04-05

Error log:
.\external\mods\Carousel Character Select.lua:1034: attempt to index a non-table object(nil) with key 'Players'
stack traceback:
   .\external\mods\Carousel Character Select.lua:1034: in function 'f_selectReset'
   .\external\script\start.lua:1472: in function 'f'
   external/script/main.lua:3181: in function 'loop'
   external/script/main.lua:3266: in function 'loop'
   external/script/main.lua:4227: in main chunk
   [G]: ?