Oh I actually saw that one days ago, I think it was posted by the creator on the mGBA Discord, mentioning how it was possible thanks to mGBA's new scripting feature.
I forgot about it, but I can surely make it news if desired.
hahahaha I'm half way through a bag off my Volcano and my tolerance is way down because I haven't been smoking much lately, so I was a little slow to catch that that was what your angle was
I forgot about it, but I can surely make it news if desired.