I've found the source of baby mode. Since your character shrinks while falling, I assume entering the door tricks the game into keeping you small.
pretty much! we didn’t have enough time to fix the bug during the jan
It's not a bug anymore; it's a *feature*.
Baby Mode honestly sounds really funny tho, so I might try it myself! Reminds me of secret modes in '90s games, like ones that made your character's head gigantic. <3