Crimson Clutter

Crimson Clutter is a Nine Circles level created by RedUniverse. It is commonly regarded as the hardest Nine Circles level, possibly only behind Sonic Wave (it is still debate whether SW was verified legit or not). Due to its difficulty, it is typically regarded as a hard or insane demon.

Overview
Besides Sonic Wave, Crimson Clutter is the hardest Nine Circles remake ever. Surprisingly, it was verified legitimately by its creator, RedUniverse, despite its difficulty. It is one of two demon Nine Circles level to have all portals featured in it (however, not sequences), the other level being The Realistic by Softable.

Gameplay
The level starts off with a pretty simple cube with a little bit of fake lining and troll jump rings and jump pads. The cube then transitions into a somewhat difficult ship with jump rings and gravity portals, and requires good timing to avoid accidentally hitting a spike. The ship then turns back into a cube, with a few simple jumps. The beat drops, and then jumps into the infamous wave in Nine Circles levels. The wave is extremely difficult, and has many gravity portals, very tight spaces, and, as mentioned, has a mirror that may disorient players who do not adapt well to the sudden direction flipping. The level will then end off with a fairly difficult ship that involves jump rings and gravity changes. At the end, the ship goes to half speed and the level ends with RedUniverse's name, accompanied by the text "GG".

Trivia

 * Crimson Clutter is the hardest demon rated and starred Nine Circles level as of today.
 * Only 4 people have beaten Crimson Clutter legitimately due to its difficulty, who are: Riot, Cyclic, Pacosky18, and the creator himself.