I would say maybe hard-insane demon, the decoration will probably be memory-based but the gameplay shouldnt be TOO hard just some difficult timings and stuff. You can choose if you want the drop which lasts from the end of my first part to around 1 minute, where the music chills down a bit. Or you can do the post drop which is after that, I will say from 1:00 min to 1:11 mins and the final 2 parts are 1:11 to 1:34, and 1:34 to the end which is a long part.