Easiest level in the game (not a robtop level)
Retray
Hour long extreme
Eon
Often considered to be the easiest insane demon in the game. Created by DavJT
Crazy II
2nd hardest ILL level
Tax evasion
Remake of slaughterhouse, placed 1 spot below slaughterhouse on the aredl
Kocmoc
The first legendary platformer level
Coaster Mountain
This level is infamous for its beginning and ending wave parts
Cataclysm
Hard demon platformer joke level made off of the popular meme that involved the sound effect, "Fire in the hole"
Logodomy
#3 on the ILL
Oxygen shotgun
#5 hardest level in the game
Nullscapes
Second most popular level in the game
Sonar
This level is known for its extremely boring predrop gameplay. It is mainly black, blue, and red and is famous for its joke.
Congregation
Weekly demon that gave people eye conditions due to its insane visual effects
Backbeat revenge
Which is harder, angelicide or aeternus?
Angelicide
Top 30 that took inspiration from Acu
Poocubed
One of Rafer's most popular levels, as it includes 2 bossfights and is in a gauntlet
Slam
This level is very similar in both gameplay, decoration, and its name to another level the same creator created. It has its own theme of decoration, and it was verified by its creator.
The Yandere/The Yangire
The first mythic extreme demon
Throat of the world
Easiest level on the ILL
Can't let go
Superbuffed remake of a Superbuffed remake of a robtop level
Quanteuse processing
The most popular 6 star in the game
Shock
These two levels are the exact same difficulty, however one is a remake of the other and is placed higher only due to its decoration
Sonic wave/Sonic wave rebirth
This XL 1.0 styled level was featured by robtop, even though it was made in late update 1.4
Dear Nostalgists
#5 on the ILL
Lunar Empress
Top 40 modern nine circles level made by the same creator of Subterminal Point
The Hallucination