Uploaded August 2026 | Updated September 2026, 3 weeks ago
A newly verified extreme demon hosted by the goat, L4tezk. This level is in L4tezk's own words, their best level, and it definitely shows. Design style can go reallyy hard and it is clearly seen in this level, being a partially memory level as are some of latezk's other levels. The theming is really cool and the deco definitely delivers what it needs to. Absolutely fw this level, really cool! I've heard it's around top 200 in difficulty, so this is definitely on the high end of extremes.
Verification: youtube.com/watch?v=w54CDLvsFiw
ID: 147046437
Song: Isolation - Protostar (NoNG)
Creators: L4tezk, DreamZoneGD, At424, Lepuska
A newly verified extreme demon hosted by the goat, L4tezk. This level is in L4tezk's own words, their best level, and it definitely shows. Design style can go reallyy hard and it is clearly seen in this level, being a partially memory level as are some of latezk's other levels. The theming is really cool and the deco definitely delivers what it needs to. Absolutely fw this level, really cool! I've heard it's around top 200 in difficulty, so this is definitely on the high end of extremes.
Verification: youtube.com/watch?v=w54CDLvsFiw
ID: 147046437
Song: Isolation - Protostar (NoNG)
Creators: L4tezk, DreamZoneGD, At424, Lepuska
![[Top 1] - SHEOL 9 with Frame Windows Counter](https://i.ytimg.com/vi/R2ArfKdKnz0/mqdefault.jpg "[Top 1] - SHEOL 9 with Frame Windows Counter
Sheol 9 is an upcoming top 1 extreme demon by Rynoxious, to be decorated by him and Linear. They plan to make this level the level to end all nine circle top 1s, and I have no doubt they will cook. This is an early look the current version (still a layout) difficulty, and is obviously very subject to change. Its not very long but has insane difficulty regardless, which is really brutal. Theres a ton of 4 and 3f timings which add up, combined with the cps and possibly some memory stuff going on, as the wave is already going through blocks, etc. Very much looking forward to this levels deco.
ID: Private
Song: Sheol Death - Panda Party & Xtrullor
Creators: Rynoxiouss, Linear")
![[Top 5?] - DEATH CIRCLES X with Frame Windows Counter](https://i.ytimg.com/vi/Rk77FpNSCrk/mqdefault.jpg "[Top 5?] - DEATH CIRCLES X with Frame Windows Counter
Death Circles X by zXdasfsa is a pretty short but very difficult nine circles level. It was intended to be the shortest nine circles level, and it succeeds afaik if you dont count challenges that have nine circle level parts. Its also placed on the ILL at 1023, a few spots below Society and much higher than TS2. Its pretty hard to say exactly how hard the level is, but I have no doubt those spammy corridors coupled with very difficult timings sprinkled throughout make the level this hard. The WR is 63-100% by Spanifer, and it could probably be beaten without too much a hassle. this is kinda filler ig
ID: 136531464
Song: The Grind - NightKilla (NoNG)
Creator: zXdasfsa")
![[Top 150?] - Can You Do It with Frame Windows Counter](https://i.ytimg.com/vi/Rz_LVH8OSy4/mqdefault.jpg "[Top 150?] - Can You Do It with Frame Windows Counter
Another quick frame window vid for a somewhat recently verified impossible level. Not very interesting I know, but its something at least. Ill paste the rest of my old description below from the full detail showcase. also sidenote this fwc is almost 2 months old LOL
Can You Do It is an old impossible level by the infamous creator, Optic Sunflow. It was made in 1.5, when the top 1 was Definite Integral by Rabbitical, and oh man is it a monster of a level. Sometimes I wonder if Optic Sunflow was okay, because this some of this gameplay is so creatively devious, and you wont really understand till you play it. The original version was actually physically impossible in one spot, but was fixed by UltraVenom in 2019, with the ILL now using his fix as the copy.
The levels WR probably stood at 11% for years, after which HequinoX started playing this level, progressing swiftly until landing a WR of 59% in early 2023 after 4k attempts. He estimated the level to be around top 20 at the time, which actually falls in the range of our next verifier, Sulky, who started playing it around 2 weeks ago, got the WR of 64% a week later and 1.8k attempts, had a worst fail of 78% and then just verified it today in 4.4k attempts, around 3 hours ago as of publishing. Its worth noting that Sulky is a very good player, with a hardest of COMBUSTION, so of course it wasnt a mind numbingly bad experience.
Either way though, this level has some of the worst gameplay imaginable, with really awkward setups and frame perfect inputs (on 60 lol) all throughout. Youll see tomorrow with my frame window counter, but I cannot overstate how terrible some of them are for a level of this estimated difficulty (100-200). The UFO spam at 63% is very fast, nearing 15 CPS for a consistent setup, as well as a somewhat precise start to the spam, as hitting any block nearby will kill the run. Then of course we should mention the terrrible ship straightfly parts, which were probably only possible in players dreams back then. Overall a very respectable completion, GGs to Sulky and go sub to them below!
Verification Video: https://www.youtube.com/watch?v gnMQJcBYGs&
ID: 56337646
Song: xStep - DJVI
Creator: Optic Sunflow")
![[Top 10?] - CYBERPSYCHOSIS with Frame Windows Counter | Showcase](https://i.ytimg.com/vi/S81vhpJ5Hvs/mqdefault.jpg "[Top 10?] - CYBERPSYCHOSIS with Frame Windows Counter | Showcase
CYBERPSYCHOSIS is another niche upcoming top demons and maybe one of the most promising ones. It was showcased around 9 months ago by Sobean, intended to be verified by him. He ended up disliking the level to the point of dropping it, making it an open verification for a while until the top player GuilleNS took interest in the level and upgraded the visuals, with him as the new set verifier. He first posted progress of 52% with a frame perfects counter back in February, and didnt post anything else until a month ago, when he showed a best run 36-100%. His current hardest level beaten is andromeda, so hes definitely capable of this. The level is especially carried by the first 15% or so as you can probably tell. Currently all we have for an estimate is at least twice as hard as andromeda according to Guille, so itd likely place around the #10 spot right now, maybe a bit higher. Goodluck to Guille, go sub hes underrated!
This level also has special setups that force a certain alignment, so this should be one of the most accurate to actual run frame window counters.
36-100%: https://youtu.be/LHjNGQcUQkI?si=C2yw88w13loAiVJ1
ID: Private
Song: Cyberware - Demonicity
Creator: Sobeann, GuilleNS")
![[Impossible?] - Haunted Corridor (ILL Ver.) with Frame Windows Counter](https://i.ytimg.com/vi/TK76DPncSzs/mqdefault.jpg "[Impossible?] - Haunted Corridor (ILL Ver.) with Frame Windows Counter
Haunted Corridor is a pretty famous impossible level by Kaotik and others that features some extreme imbalance, impossible spam and quirky gameplay (but mostly spam). The level isnt too ridiculous but some of the awkward gameplay makes the level absolutely not doable even in this state, with random chokepoints all throughout. Not to mention the spam itself at the middle and end sections is kinda crazy. Emp did an even harder version which I assume is too fast in CPS for the ILL, in 23 runs, with the spams at the cube and end waves being tighter, and more ridiculous stuff overall at the end, which would definitely dwarf this version in difficulty. I might try to find and do a frame window counter on that version, this one I was sent by a viewer who requested it (Emp themself did too actually).
ID: 125457531
Song: Death Factory - ET16
Creators: KaotikJumper, szentkiralyi, dexter engine, [SE] Lenny, AtomicimotA, catria, vaixen, BlueGMD, hhuuko, mangotsu, iceMush, ImFelecatio benw029")
