This should be one of the better mazes at HHN Hollywood 2021. As pointed out by others, the Behind the Scenes photos show they are using Black Hallwayz for transitions.
I think a interesting note to think about is how much Hollywood promotes the Slash partnership they have with their Universal Monsters mazes. I think some of the original music Slash created for the Universal Monsters maze in 2018 is great, but it feels like Hollywood is beating a dead bush when they talk about their original music. Orlando did not promote the quality their Universal Monsters: The Bride of Frankenstein Lives house soundtrack. However, one of Orlando's versions biggest strong points of their Universal Monsters: The Bride of Frankenstein Lives house is the soundtrack featuring non-original music.
I gotta say, the cast in this house is incredible. The first Bride of Frankenstein was legit crying last night as she stood over The Monster. I’ve never seen that before in any house anywhere. Mad props to her for bringing that scene to life!
Tied for my favorite house this year. There's a ton of detail in the show scenes, the black wall transitions have good scares, and there's always a short line so I always have a good walkthrough. Not as good as the other Monster installments, but good considering the budget constraints. The scare zone at the end leaves a little to be desired. feels kinda small.