![(Mobile) 1929 100% [Insane Demon] by lfritz | Geometry Dash @NoxopGD](https://i.ytimg.com/vi/ZBz5EH6DrDA/maxresdefault.jpg)
Uploaded October 2020 | Updated September 2026, 1 day ago
Although the decoration is not that great, the gameplay in this level is absolutely incredible. It syncs and flows perfectly, it just feels so satisfying to play. The difficulty comes almost entirely from the ship parts, if I had to give you the three hardest parts they would all be ship. I don’t think this is a bad thing, you just often die to the same places. The rest gets very consistent, which allows you to get far pretty often. I recommend playing this level, which is definitely an insane demon in my opinion.
Enjoyment: 9.5/10
Although the decoration is not that great, the gameplay in this level is absolutely incredible. It syncs and flows perfectly, it just feels so satisfying to play. The difficulty comes almost entirely from the ship parts, if I had to give you the three hardest parts they would all be ship. I don’t think this is a bad thing, you just often die to the same places. The rest gets very consistent, which allows you to get far pretty often. I recommend playing this level, which is definitely an insane demon in my opinion.
Enjoyment: 9.5/10
![(Mobile) 1929 100% [Insane Demon] by lfritz | Geometry Dash](https://i.ytimg.com/vi/ZBz5EH6DrDA/mqdefault.jpg "(Mobile) 1929 100% [Insane Demon] by lfritz | Geometry Dash
Although the decoration is not that great, the gameplay in this level is absolutely incredible. It syncs and flows perfectly, it just feels so satisfying to play. The difficulty comes almost entirely from the ship parts, if I had to give you the three hardest parts they would all be ship. I don’t think this is a bad thing, you just often die to the same places. The rest gets very consistent, which allows you to get far pretty often. I recommend playing this level, which is definitely an insane demon in my opinion.
Enjoyment: 9.5/10")
![(Mobile) Castling by Meroo [144hz]](https://i.ytimg.com/vi/Z_hyJEmRvbE/mqdefault.jpg "(Mobile) Castling by Meroo [144hz]
Raw footage: https://youtu.be/J5xZHEZqVXY
This level is fascinating to say the least. Levels known to be poorly made tend to pique my interest, which is why I’ve beaten Sword Dance, Galatic Fragility and Death Note. Although these generally loathed levels can sometimes be strangely fun (Sword Dance being the prime example), I unfortunately didn’t have the best time playing Castling. Obviously, I never expected to have fun with this level, which made the experience slightly more bearable — I knew what I was getting myself into.
Let’s move on to the actual level, shall we? In a nutshell, Castling is a medium demon with a dozen chokepoints that bump it up to extreme demon difficulty. These chokepoints are frustrating enough on their own, but the fact that the hardest ones are located in the second half of the level is the cherry on top. Second half heavy levels tend to have one major issue: playing from 0% is exceptionally boring. Ironically, this poor balancing also comes with a quality: the illusion of consistency — getting far all the time can be somewhat fun, especially if the level is fast-paced.
Moreover, I’d like to explain what makes each of the aforementioned chokepoints so difficult:
- Luckily, the hardest timing of the level is located at 4%, which makes it tolerable — it is quite annoying nonetheless. While it may not seem hard at all on a video, this jump is actually frame perfect on 144fps due to an invisible spike making it absurdly hard.
- The blue orb timing at 24% is insanely difficult, partly because you cannot see the orb until you have to hit it. That being said, it gets incredibly consistent over time.
- The ball timing at 35% however does not get consistent in the slightest.
- The dual ship at 39% is quite janky and confusing, which makes it very easy to mess up despite the timings themselves being relatively easy.
- The wave timing at 63% is already very difficult on its own, but the fact that it is located in a click-dense part makes it completely reliant on muscle memory.
- The timing at 69% is incredibly unintuitive.
- The blue orb spam at 70% is significantly harder than it looks since you also have to avoid some invisible saws. As a result, the click pattern required to get past this part is insanely awkward and hard to get used to.
- The wave input at 74% is extremely difficult to time properly because of the placement of the spikes.
- The yellow orb timing at 78% is straight up too precise.
- The jump at 91% is a nightmare. Not only is it absurdly difficult, but you can barely see it coming, which makes it mostly luck-based.
- The last wave is extremely awkward. It may not look too hard on a video, but it is full of invisible hitboxes that makes it very easy to die.
- The last jump is not intuitive at all, I unfortunately died there once.
Despite all of these chokepoints, this level is definitely not the worst thing in the world — it was actually quite fun from time to time, and I absolutely adore the song. I’m not sure I would recommend playing Castling, but I can see why some people enjoy playing it.
Lastly, I think this level is alright in terms of decoration, although it is inconsistent quality-wise. For instance, I think the last wave looks quite nice while the ship part at 79% could use a lot of work. I appreciate the unique structuring in some parts, as well as the fade and enter effects. I have nothing else to say though, as this isn’t the most creative level visually.
Attempts: 2,717
Enjoyment: 3/10
Easiest part: 0-58 (excluding 4%)
Hardest parts: 4%, 58-100%
Difficulty: Extreme Demon (harder than Uprise, easier than aftermath)
Song: Europa
Artist: Blackhole12
Link: https://www.newgrounds.com/audio/listen/600642")
![(Mobile) Zodiac 55-100% [144hz]](https://i.ytimg.com/vi/Zi6yuto3txo/mqdefault.jpg "(Mobile) Zodiac 55-100% [144hz]
Raw footage: https://youtu.be/aR5b0XneE4g
Died at Enlex 5 times before doing the run :(
This is surprisingly consistent and extremely fun! really scared of Shock though
Attempts: 2,779
Song: https://youtu.be/0ZUoFPLlVQU")
![(Mobile) Outer Edge 100% [Medium Demon] by SleyGD | Geometry Dash](https://i.ytimg.com/vi/_c5m1dgYsMY/mqdefault.jpg "(Mobile) Outer Edge 100% [Medium Demon] by SleyGD | Geometry Dash
I hope the medium demon rating is a joke. This level took me 860 attempts and over 2 hours. This is AT LEAST a hard demon. Now about the level...Sley is amazing, and an insane creator (nowadays) but this level... Literally every single part is incredibly annoying. The first ship requires very awkward flying. The UFO is just as bad, extremely tight timings mixed with some spam here and there. Then we get to the boss fight...Which took me around an hour to learn and get consistent at. The arrows are absolutely useless, and you just need to memorize when to go up down...if it was just that, it would be fine. But no. Sometimes, you die to absolutely nothing, and some of the transitions are essentially luck. The last part is bad as well. I died 6 times there. The timings are weird and very hard. Overall, this level was...pretty catastrophic. It’s incredible how much Sley has improved since this, both in terms of design and gameplay. This was just 8 months ago, and now he releases masterpieces like Bop It or Contrast.
Enjoyment : 0/10")
![(MOBILE WR) Zodiac 53% [144hz]](https://i.ytimg.com/vi/_fAfmTLlRGg/mqdefault.jpg "(MOBILE WR) Zodiac 53% [144hz]
Raw footage: https://youtu.be/V4ginGX1rQo
wanted to wait until I got to TMN (list %) before uploading but whatever Im super happy with this run :) fluked from 41% so this was kind of unexpected
Attempts: 5,575
Song: https://www.newgrounds.com/audio/listen/739991")
![(Mobile) Incipient by Jenkins [60hz]](https://i.ytimg.com/vi/_oVV8x9fXbU/mqdefault.jpg "(Mobile) Incipient by Jenkins [60hz]
Despite a few annoying spots, this level was overall extremely fun. The decoration looks decent and was definitely ahead of its time, although the 2.1 rocks and lava usage didn’t age very well in my opinion. The gameplay is really satisfying all the way through. I can still name a few awkward spots, mainly 25%, 52-53%, and 86%. This level took me about 2200 attempts which is less than some insane demons I’ve beaten, however it took me a lot longer, since you get past the first few parts very often in this level. An awesome experience, I definitely recommend this level!
Enjoyment: 9/10
Song name: Immunity
Artist: Dex Arson
Link: https://www.newgrounds.com/audio/listen/688899")
![(Mobile) Uprise 78% [EXTREME DEMON] by Blad3M | Geometry Dash](https://i.ytimg.com/vi/_xpClaYuAoE/mqdefault.jpg "(Mobile) Uprise 78% [EXTREME DEMON] by Blad3M | Geometry Dash
Truly one of the most devastating fails I’ve ever faced. Failing here is like failing at 98%, everything after the wave is really easy. I’m so mad, but I won’t give up.")
![(Mobile) Digital Descent by Viprin & more [144hz]](https://i.ytimg.com/vi/arvAV5vw9No/mqdefault.jpg "(Mobile) Digital Descent by Viprin & more [144hz]
Raw footage: https://youtube.com/playlist?list=PLRRaPafHqwsv-IoXPwV2YAltYsrvsrKEM
Before playing this level, I actually disliked it, but I absolutely love it now. Almost every single part is incredibly fun to play and everything gets relatively consistent. Some parts are noticeably harder than the rest of the level though: Loogiah, G4lvatron and KrmaL. As a result, this level feels quite second half heavy but I don’t really mind it. I was quite scared of TheDevon and Etzer when I started playing this, but those parts aren’t actually that hard in my opinion (compared to G4lvatron at least), and they’re insanely satisfying to play. I think the first 40% is the most frustrating section of the level despite being the easiest. I especially dislike the straight fly at 27% and the ship gap at 37%, although the latter got consistent after a while. 40-100% is very fun for the most part but I do have a few issues with it: the ship at 58% is way too difficult and inconsistent, the transition at 61% is extremely annoying, 72% is too hard and so is KrmaL’s wave part. I still had a lot of fun playing this level and I definitely recommend it!
Enjoyment: 10/10
Worst fail: 91%
Attempts: 4,680
Easiest parts: Terron, LazerBlitz, Codex
Hardest parts: G4lvatron, KrmaL, Loogiah
Difficulty: Extreme Demon (harder than Auditory Breaker, easier than Sunset Sandstorm)
Song: Carnivores
Artist: Creo
Link: https://www.newgrounds.com/audio/listen/690265")
![(Mobile) Sword Dance 100% [Insane Demon] by Aidancrdbl | Geometry Dash](https://i.ytimg.com/vi/b0y1GufTImA/mqdefault.jpg "(Mobile) Sword Dance 100% [Insane Demon] by Aidancrdbl | Geometry Dash
I really enjoyed this level. The unique-memory gameplay got extremely consistent and satisfying, even though learning was pretty hard. Since the first 40% is pretty easy compared to the rest, you always get far which made it incredibly enjoyable and not boring at all. The hardest part, for me, used to be the dual wave right before the robot, but I found a way to avoid the spam which makes this part almost completely free, so, now, I think the hardest part is the robot: it features some very precise jumps, and ESPECIALLY the jump at 69% which is absolutely insane. I died about 10 times at this robot part. The following ball part wasn’t too bad although a bit stressful, I died there twice, at the first timing. This timing is not that bad in comparison to the 69% jump; it used to be the reason this level was so hard but since it got nerfed a few months ago it’s way more consistent. I also think it’s easier on 60hz than on higher refresh rates but I’m not sure. Overall, this level was way better than expected and definitely one of the best experiences I’ve had with an insane demon. I don’t agree at all with it being the worst insane demon. That spot goes, in my opinion, to Galatic Fragility.
Enjoyment: 9/10
Song: Eurodancer
Artist: TMM43
Link: https://www.newgrounds.com/audio/listen/117947")
![(Mobile) xo by KrmaL [144hz]](https://i.ytimg.com/vi/bAyHWHgtumY/mqdefault.jpg "(Mobile) xo by KrmaL [144hz]
Raw footage: https://youtube.com/playlist?list=PLRRaPafHqwsuVS_xTytPmS6WvyJnRz1KG
xo is one of my favorite extreme demons and it is easily KrmaL’s best level in my eyes. I have always loved the song and how well the level represents it, through interesting structuring (the dual at 32% being the prime example) and creative decoration (the air deco at 18% and 49% for instance, as well as the sync parts at 33% and 78%). KrmaL never fails to come up with innovative gameplay, and I feel like xo demonstrates that beautifully; I especially like 61-78%, as it features gameplay you’d never expect to see in your average extreme demon while being exceptionally fun. I firmly believe that all a level needs to be amazing is a good song, great song representation, and decent execution. This level checks all three boxes, and I do not think the simplistic decoration makes it any worse.
I’ve always been scared to play this level because of how intimidating the first third is. That being said, I decided to give it a solid go over three weeks ago, and progress was very slow: I was having a really hard time getting 61-100%, which is the easiest part of the level by a long shot, and things didn’t get any better afterwards. It took me an unbelievably long time to do 41-100% for the first time, a run I’d end up doing 35 times before beating the level. Basically, 41-100% gets all of its difficulty from the unorthodox gameplay (which you get used to over time) and a few chokepoints: the cube portal at 45%, the straight fly at 48%, the jump at 58%, the straight fly at 73% and the dash orb release at 76%. Since most of these get very consistent, 41-100% naturally gets extremely consistent as well, but it requires a lot of practice to say the least.
0-32% however is a completely different story. No matter how much you practice this part, it does not get consistent — I would usually get past it 3 or 4 times per hour at best. The first 10% is honestly not very difficult; the dash orb at 3% is hard at first, but it is actually much easier if you enter the cube portal with downwards momentum. 10-18% is by far the hardest part of the level, and it is one of the brutal and inconsistent parts I’ve encountered in an extreme demon. I could spend hours explaining how ridiculously difficult the ship gap at 13% is, but I think you have to play this level for yourself to truly understand how hard it is. Not only is the gap itself absurdly tight, but the transition into the ship portal being ever so slightly different each time is the cherry on top. Do not expect to ever get consistent at 13% as it is by far biggest chokepoint in the level, and when you miraculously get past it, you still have to go through a very difficult ship part: 17-18% is much harder than it looks. After that, you get to enjoy a small break: 18-29% is relatively easy although you can definitely die at the wave if you’re not careful. Unfortunately, this section is immediately followed by an incredibly hard and unintuitive ship part. There are many ways to enter the ship portal at 30% depending on when you jumped as the cube, and you have very little time to change your click pattern accordingly, which makes this little ship corridor extremely inconsistent and frustrating. The dual at 32% is perhaps even worse: you have to suffer through dual ship physics, it is incredibly easy to accidentally hit a block, and the click pattern as a whole is insanely unintuitive and easy to mess up. Of course, once you somehow get past the first 32% of this level, you have to deal with nerves because of how rare drop attempts are, and that makes 32-100 significantly harder from 0%.
Overall, this is one of the most stressful and mentally draining levels I’ve ever played. That being said, it was still a lot more enjoyable than expected and I had tons of fun practicing 41-100%, which is absolutely fantastic in terms of gameplay. I’m not sure I can recommend this level, but if you’re mentally prepared and truly love the level like I do, go for it.
Attempts: 10,958
Worst fail: 73% (x2)
Enjoyment: 6/10
Easiest parts: 33-44%, 49-100%
Hardest parts: 13-18%, 30-32%, 45%, 48%
Difficulty: Extreme Demon (harder than Dark Flare, easier than Yatagarasu)
Song: xo
Artist: EDEN
Link: https://youtu.be/tWHBaJHo5og")
![(Mobile) HyperSonic by ViPriN & More [60hz]](https://i.ytimg.com/vi/bWKFpXG7UY4/mqdefault.jpg "(Mobile) HyperSonic by ViPriN & More [60hz]
Finally. This level took me 4813 attempts, and I can safely say it is one of if not the worst experience I’ve had with a level. It was also way harder than expected, and I would consider it harder than Acu, Thanatophobia and Incipient. Here are my thoughts on every part, ranked from easiest to hardest:
Serponge: By far the easiest part, a bit hard to get used to at first but once you understand how it works you should basically never die there. Pretty fun to play.
Dudex: First part of the level, so it was obviously going to get consistent pretty fast. It’s also pretty easy, there aren’t any hard timings. Good part.
Viprin: By far, but I mean BY FAR the best part in this level. It is extremely satisfying to play, there’s not a single bug or annoying timing. I absolutely love this part.
Rustam: Very easy part, but the skull is quite easy to die at. Nothing much to say about it, good part.
Evasium: This part plays very weird because of the speed changes, but it isn’t very hard at all. Died there a few times because of nerves.
Vlacc: At first, the wave at 23% was extremely annoying, but it gets very consistent, so I basically never died there after a while. The transition to rustam as well as the quadruple spike can be very annoying though.
Pan: This parts seems impossible at first. It took me an unbelievable amount of time to get consistent at it, but once I did, it was not that bad. Still died 25 times there from 0, mostly at the wave and at the cube. Overall a fun part.
Etzer: I do not understand how I died 11 times there. Nerves can make parts so much harder. The ship was pretty annoying and the transition into the part is one of the worst in any level because of how ridiculously buggy it is, but otherwise, this was a good part.
Terron: Extremely stressful and hard considering it’s the last part of the level. Unsurprisingly, I died there twice, at 91% and 93%.
Manix: This part is only hard because of the spider at 16%, which I died to way way WAY too much. Almost felt luck based. Otherwise a decent part.
Now you might be wondering how this can be one of the levels I hate the most. Well, let’s comment on the 2 hardest parts...
Nasgubb: I absolutely despise this part. It literally felt random, and every death seemed out of my control. It just feels so unfair. Absolutely hated every single timing, and I was not consistent at all. Horrible part.
ZenthicAlpha: If you thought I hated Nasgubb’s part the most in this level, you are very wrong. This part is quite possibly the worst part I have ever played. The dual is annoying as hell because of two bugs: sometimes, your wave just randomly dies despite the presence of D blocks everywhere, and secondly, you sometimes don’t reach the blue portal and your big robot dies. This dual is already horrible, and it’s not even the worst thing. Following that, we have a ship part, which is the part that has made me the angriest I’ve ever been playing this game. I died there about 95% of the time, it is so incredibly awkward and unfun. I can’t put into words how much I hate it. After a very annoying robot, we get to a completely luck-based spider spam, which is even more random than nasgubb’s part. Without this part, I would’ve beaten this level way faster and I would consider it an insane demon. Sadly, this part exists.
I would not recommend this level. Also my 5th extreme demon :)
Enjoyment: 1/10
Song name: 10000
Artist: ColBreakz
Link: https://www.newgrounds.com/audio/listen/684300")
