Dwelling of Doom
From Video Game Music Preservation Foundation Wiki
Dwelling of Doom is a song from Dracula II: Noroi no Fuuin (FDS). It plays whenever Simon is inside a mansion.
Dracula II: Noroi no Fuuin (FDS)
Castlevania II: Simon's Quest (NES)
The Dracula II: Noroi no Fuuin verison of Dwelling of Doom appears in the game, Super Smash Bros Ultimate.