The GBA version is totally different. There should be a different category or something like that.

That is true. I think if you end up speedrunning the GBA version, you should submit it to us in this thread or on Discord and I'll make a category for it. Or you can bring it up with the higher-up moderators and see if we can get another page made for the GBA version since it is completely different, but you would have to moderate it yourself or invite me to do so. I will warn you though that I find the GBA version to be even more boring than this one.