Alright, I admit that I cheated a bit to find it (peeking into files), but the VIP room is a very nice touch! The messages were great, MinoAnon and dev team, I love hearing from you and honestly agree that this feels like something special! And I'm glad it's sparked something for you all, and I can't wait to see what else is in store.
Those super impatient to finding the VIP room can, of course, likewise trawl through the code to find it, but for those who love the thrill of the hunt, I leave you with a hint: You need to be on a fresh save to be able to find the VIP room. You have to do something early in the game to find it, and when you've done it right, a chord will sound and a song will start playing. This means the VIP room will appear later in your run. Happy hunting!