Soft Idea:

{This is a really interesting IT idea!}
This is the Gemini internet protocol! https://en.wikipedia.org/wiki/Gemini_(protocol)
So, I had the idea that this protocol could be used in low-cost or free data plans with smartphones and such. Imagine if some poor Brazilian tourist tried to come to Japan and was so enthralled by kawaii anime girls and sushi that he forgot to deal with international SIM cards or pocket Wi-fis! And he could only use his hotel Wi-fi to e-mail his friends and the thought of using a cell phone with an unrecognisable number to call back home is unthinkable because of all the scam callers1 But at least he has friends back home.
https://firstorion.com/unwanted-calls-in-brazil-6-fast-facts-infographic/

Well, Japan is a country of emergency preparedness and disaster prevention, so this Gemini protocol or a version of it could be useful in providing emergency evacuation text information in basically every language supported by Google Translate! https://support.google.com/translate/answer/15139004?hl=en

But if you're in some remote camping area with no reception, it could be used to browse a really lame version of the internet and read haiku all day in areas still supported by long-distance transmissions technologies supported by LoRa and whatnot. But even they might get bored with that!
https://www.youtube.com/watch?v=Iq1k_FCWPXk
"Jesus Christ, can't we have something in between? Ultra flashy and heavy web pages or plain text with no inline links. C'mon. I get the whole "browsers are supposed to be browsers", and the idea of, for example, a video playing in my installed video player makes sense to me. But this is way too basic. It's basically a regression."

You heard this poor sap, give the fellow something in between!

(But seriously, Japan seems to be a country where it's a whole lot easier to casually socialise with people and tell dirty jokes even to phone repair staff! So, I was busy having a broken language conversation with a iPhone repair staffman because of a miscommunication with a taxi driver, and we talked about ochayoi.com and how there isn't much regulation on "ordinary Chinese tea" compared to alcohol and ma000000a, and we talked about ways of being rude in other countries, I told him yelling "Oi cunt" is the Australian way of being rude, which he has not heard of, and we both understood "suck my dick" but if someone angrily telling a person to "suck my dick" actually got his pants pulled down and had his, you know, the angry person would be extremely shocked, and we both laughed hilariously but I still wonder if it is appropriate to tell such jokes to phone repair and if now wonder he was fake laughing out of politeness.)

But even with basic Gemini-level script (NOT Google Gemini!!) I could come up with ways to entertain with low bandwidth.

Pixel art generation shorthand code:
So I had this idea from reading about The Hobbit game from 1982 where to save space, simple outline information and flood filling was used on the tape version. So, prerendered images do inherently take up more space that generation scripts.

This is a random string generator, but what if one of the strings generated could be a shorthand generation code for a more complex pixel art image? Or even for coherent text?
https://www.gigacalculator.com/randomizers/random-alphanumeric-generator.php

So there are about 2,200 Joyo kanji, but there's only 256 variables possible in 8-bit. Why not create a simple conlang using 256 Classical Chinese characters or whatever just like with Toki Pona and stuff! But each hanzi is specifically selected to maximize possible meanings!
https://conlang.fandom.com/wiki/Smallest_Conlangs

I wonder what kind of complex meaning a generation script with 256 hanzi a simple string like "7jnoduf395hs0d52kd4743tnto2ulbnsfldz0gtqgmrlai6wx3it3pdlggoq5rlr" would produce. Maybe a full translated copy of Moby Dick? But I am an imaginer, not a computer scientist.

3D Graphics that look hand drawn:
Please refer to "Natural Habitat Shorts." Or an article on Bloop Animation about making a 3D animated film.
https://www.youtube.com/@NaturalHabitatShorts

You could also use a spline autofilling filter to make a low-poly base model look high poly and cartoony at the same time.

Two ways for low file size high resolution textures on 3D models are
1:feTurbulance SVG filter.
2: Pixel art scaling algorithm. Maybe a scaler with one of these filter effects built in.
https://paintation.com/paintation/
https://swisspixstore.com/art-filter-photo-editor-paint-filters-and-cartoon-effects-tutorial/
https://fotosketcher.com/
https://www.google.co.jp/search?q=vector+art+effect+apk
https://www.amazon.com/makerapp-Photo-Art-Effects-Varnist/dp/B0CZVM87QQ

Experimental Games:
I am seriously interested in the concept of a common branded "official" low-cost "doujin game console" that allows anything to be published on it. Not just those makeshift Chinese Android devices. It can be in any form, it just would be nice to include ways for people with limited mobility to be able to play. Not necessarily a one handed game controller just for people who broke one hand and can only use the other hand because it's obvious how that can be misused. "Our game controller can be played by amputees! We are inclusive of disabled people!" Yeah, nice try, buddy.

But, in the world of film, there are "experimental films" meant to advance film as an art form and not to make money. Likewise, I believe the same thing should be encouraged with "experimental games." Because there is a lot more ways to settle a conflict than to haphazardly flail a weapon at a dozen bad guys, because that often makes things worse in real life. There should be a lot more games teaching realistic ways to make friends, because social isolation is a big issue in many places.

Traditional Japanese Internet Protocol:
So, it seems neither HTML, Gopher or the non-Google Gemini natively support writing text in vertical mode! (Well, I guess a simple adjustment filter on a Gopher/Gemini web browser is no issue, but...) HTML requires scripts like CSS for vertical writing! So here's an idea for your Japanese emergency Gemini!
Making vertical text a standard: https://tategaki.github.io/en/

Computer Monitor Or Television Display:
This. You can't understand what the drama is all about otherwise.
https://artnewsjapan.com/article/1321

{This is a really interesting personal idea!}
Japanese Rap Lyrics: So, I hear from hip hop artists in videos that lyrical quality and rich expressing yourself in English is important in hip hop. Well it can be, if you're not grinding, hitting Brazilian dimes from behind, grinding, hitting Brazilian dimes from behind, grinding, hitting Brazilian dimes from behind, but I digress.

I don't speak Japanese, but it seems an entire song composed with a similar textual style to haiku could allow for quite rich emotional expressiveness and information density. Sure, it can still rhyme and use tongue twisters and such, but compared to English...
https://jphaiku.jp/haiku/

Ah, but songs are listened to and not read, but I consider that a potential advantage in increasing emotional expressiveness. You don't have to compose songs using kanji at all, you can intentionally compose all the lyrics in romaji because using all kana seems childish even to me, and I actually considered a romaji based writing system to be actually more useful in conveying the nuances of spoken speech, because you can use different crazy fonts, colours, symbols like ～ or whatever, but that's for later, you can intentionally use words that use different kanji but sound the same when spoken and actually mean both things in the same piece of lyric. So if you use "sentaku" in only romaji and manage to make it mean "choice" or "laundry" or maybe the more poetic "relaxation; rejuvenation; melting away (of worries, fatigue, etc.)" according to Jisho.org, right in the same piece of lyric, that's very information dense.

Or even this: https://www.furinkan.com/uy/misc/faq.html#Q1
"1 - What does the title mean? How is it pronounced?
The title "Urusei Yatsura" is a Japanese play on words. There isn't any English equivalent to this complex multi-leveled pun, so we must explain it in detail to understand it.

The first word urusei is a mispronunciation or dialectic slurring of the Japanese word urusai which means "annoying," "noisy" or "obnoxious" yatsu is an informal way of saying "person" while -ra is simply one way of making a word plural. With that in mind, the title seems to say "obnoxious guys" but it still doesn't account for the fact that it's written as urusei and not urusai. Well read on and you'll see why.

Uru is also the name of a fictional planet from which the alien race of the Oni come from. In Japanese writing where each syllable is a different character, it is written as: u-ru-hoshi ya-tsu-ra, where hoshi is the kanji (Chinese ideological character) for "star." An alternative pronunciation for that character, used only in a compound word when describing the name of a planet, is sei. So with all of that in mind, Urusei Yatsura can mean "noisy-star guys" or perhaps "annoying fellows from planet Uru" or even AnimEigo's translation that is given as "those obnoxious aliens"

Using English phonetics, the name is pronounced
"oo-roo-say yat-soo-rah." (don't pause at the dashes, just say it in quick succession like they were two words)."

By the way, I also like violent rap lyrics that don't swear but instead use descriptive language to convey the atmosphere of being involuntairily commited to a mental ward, like this. https://www.youtube.com/watch?v=mS99XKZaru0

Because what people consider "inner-city street speak" actually has more complex grammar rules than "white people English", and is known as African American Vernecular English, and I would like some resource to at learn the grammar rules in more detail for the sake of poetry, not because I am trying to "culturally appropriate" the language.

In the same way, I would also be interested in learning how to compose Japanese style poetry for the sake of expressing myself in Japanese with my limited understanding of grammar, because Japanese has a very rich vocabulary and a "haiku style rap" or whatever could be very expressive and information dense with the most seemingly simple of lyrics. Maybe people who are with The Black Experience Japan could take interest as well.

https://softidea.neocities.org/tonguetwisterrap.txt

Enhanced Romaji: So this originally occurred to me when wanting to learn about pitch accent in Osaka-ben because it seemed to have the most varied pitch accent but all the online resources are for Tokyo dialect. And books physically in Japan seem to be the best resources for learning Japanese dialects but I guess people assume foreigners are just into Tokyo. So I thought you could use ácute and grave accents to represent different pitches, but I soon realised it could actually be more useful for representing the prosody of spoken Japanese speech and reflect the emotional state of the characters a bit more clearly, it could be used as a guide for actors, it would be the world's first example I know of of a common writing system for representing prosody. But Japanese schoolgirls invented a former prototype in the 1970s with marui-ji and that would be a pretty good prosodic writing system even if prosody is not explicitly expressed. I also came up with my own crazy romaji writings such as "renrak" that is short for "orenraku". In fact, I have my ideas for "crazy romaji I'd like to share later when I have more time.

So this is how you represent Yakuza speech.
https://en.wiktionary.org/wiki/r%CC%83

And about that traditional Japanese internet protocol, this is how your enhanced romaji will be written! Hai!
https://www.englishtools.org/en/change-english-text-orientation

(Worldbuilding Inspiration Website)
I browsed the internet so much that I started to become really interested in worldbuilding. But there's isn't something like a "worldbuilding inspiration wiki" that storytellers could consult about cool or interesting or weird or niche things in the real world that could be implemented into a worldbuilding project. Or snippets of people's imaginations and dreams that they could share in a wiki post one day and hopefully have that small idea they forgot about turned into a big project years later. Well, you know that I could be a frequent contributor to such a project.

Because the country with the second highest Japanese population in Latin American that is also safer than the highest Japanese population country has some pretty wicked boats!
https://www.youtube.com/watch?v=EuJUboZE8Zk

So you could share obscure foreign music videos with interesting visuals, sophisticated compressed air powered systems like how some Amish communities use to power their homes and operate non-electric power drills, that could turn out useful for "firepower" as well, if you know what I mean, weird sights from the big country of China that's bound to be one of the top tourist destinations maybe next decade, weird sights from the big country of America that is too busy with helping Canada recover to concern itself with international affairs as heavily as it used to but at least indigenous food will be MADE GREAT AGAIN!!
https://softidea.neocities.org/samon-n-bannock.jpeg

And lucid dreaming would seem to be the best way to immerse yourself in your own worldbuilding projects and tell better stories, but there seems to be no standard procedure for that. Such as a brain scan to determine when you go into REM sleep followed by a prescription of a delayed-release capsule took before bed to increase clarity of dreams at the correct time, for example.