Ah yes, Spooky Castle, man... DK64 had some good beats and was a good time to be had when I was younger....
Been awhile since I listened to the DK64 OST, but as soon as I heard this song, I instantly recognized it, and it flooded back to me a lot of fond memories of playing it with my parents and us having a blast. ♥ Love the spooky sounds. Love the ambience. It flows well. It is the song. Grant would be proud.
10/10 from me. Keep up the good work. :D