@Raptite2 there's credit in the cart. I don't think they asked permission but one of my mods is in here and I'm fine with it as long as there's credit. As for how it works, it just uses load() plus the cart id to load the other games.
I'm glad to see that Celeste 1.75 was considered one of the "good ones." But for some reason instead of launching Celeste 1.75, it's launching that one practice mod. It looks like you accidentally used that ID instead of mine.
Why include Yoshi 2 as the only Celeste Classic 2 mod? There's mods like Fingals by Kamera and NEO by KleinerLordii that change up both the levels and sprites or most of my mods that change the core mechanics that should make for interesting inclusions