The Uninvited is the only one of the NES MacVenture ports I never played. Now I want to.
As for the music, it's awesome. Seems to have an 80s feel.
I can't help but close my eyes, listening to this, and visualize it as the opening theme song to a cheezy (but awesome) TV series about two rogue cops, one is human, one is a werewolf, who fight crime against bad guys who turn into monsters themselves.