Thanatophobia by Artumanka & more (extreme demon) 100%
Almost everything about this level is so cool. Visuals are some of the best I've seen in a level, and the gameplay as well as the effects sync perfectly to the music.
My main criticism would be the first ship part, which seriously overstays its welcome and becomes grindy very fast, especially with the awkward red orb timing right after it. There's a few weird bugs at some points, but those are fairly minor, even though I did get tilted on occasion. Also not really a fan of the song choice, but that's not a huge deal either and I suppose it does fit the tone of the level.
(4th extreme demon weee)