I know this gets said a lot about video game compositions, but this really sounds like if there was a Mario underground music reference in an undertale/deltarune track!
I think you’ve done a great job drawing rhythmic inspiration from the original while developing the atmosphere of it in a way that makes it feel modern and spooky. Unlike the original, there is also a lot more breathing room in this which would fit a game with more exploration/story. This could definitely fit in a modern remake of the game!