@@ytuser2272 Well, the video doesn't go to the 1 hour mark, but assuming you meant 46 minutes 43 seconds, that's the credits theme from Luigi's Mansion
If you mean for when you're running around the house, then I have no idea. I just used the same ambience that FNAW3 used for Daytime Quest. You could probably find it by just looking up "horror ambience".
From what I remember, 3:27 was originally the Hallway intro in Five Nights at Wario's 3, 16:19 was originally the moments where it turned to 2AM and 4AM in Five Nights at Wario's: Return to the Factory 2: The McRoy House, 18:26 was originally the good ending for Five Nights at Wario's 3 and 26:40 was part of Five Shows at Wario's: Directors Cut. Correct me if I'm wrong on that.