How To Get To The Vanilla Castle Grounds + Lobby In B3313

❀ Credit: Mario Steals Your Liver • Mario Steals your live...
Out of all the places I need to go to in this rom hack I feel most comfortable here. Probably because it's the most familiar right? I'm sure there is an easier way here that I haven't seen yet but if I find one I will let you know.
I'm pretty sure it happened last time I was recording too but I keep ending up at that single door lobby lately, it feels like more than usual. Is it the stars?
If you are somehow reading this and need help just ask, I'll make a video or give advice in comments. Try to avoid spoiling the hack for me though, be vague and I may understand what you mean.