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SUDDEN・DESU

@sudden-desu.net
2.2K followers 89 following 591 posts

レトロゲームを逆アセンブルして調査。メガCD開発キットMEGADEVを作成した。 Retro game disassemblies/research and Megadev, a Mega CD SDK. Occasional posts about life in Japan. 🔗 sudden-desu.net 🎉 patreon.com/SUDDENDESU

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Kelly ♡☆ @kellygoround.bsky.social · 27/09/2026
real cab viable secret flicky!
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Joey ‘Detchibe' W. 🏳️‍⚧️ @thestacks.ca · 28/09/2026
SEGAPOLIS [セガポリス]/Gamest Mook [ゲーメストムック] Vol. 45 has been scanned and archived thanks to a donation from @sudden-desu.net Please enjoy! archive.org/details/SEGA...
SEGAPOLIS [セガポリス]/Gamest Mook [ゲーメストムック] Vol. 45
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SUDDEN・DESU @sudden-desu.net · 21h
New Patreon article up! OOPARTS has a debug tool hidden away with features like stage skip, pause, and perhaps most useful, a ball steering function. MAME cheats included in the post so you can give it a try yourself! 👇👇 www.patreon.com/SUDDENDESU/p...
patreon.com
OOPARTS - Debug Tools | SUDDEN DESU
OOFARTS OOPARTS was an unreleased block kuzushi game for Sega C2 arcade hardware, featuring sexy sorceresses illustrated by the legendary TA
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SUDDEN・DESU @sudden-desu.net · 24/09/2026
I haven't advertised this in a while so: I also run a blog about Japanese bubble era (1980s to early 90s) aesthetics. If you enjoy retro Japanese style, consumerism, and pop culture (which presumably you do if you follow this account), check out BUBBLISM here: bubblism.jp
bubblism.jp
𝘉𝘜𝘉𝘉𝘓𝘐𝘚𝘔・Japanese pop style in the bubble era
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SUDDEN・DESU @sudden-desu.net · 22/09/2026
MAME really is the goddamn best emulator ever made.
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SUDDEN・DESU @sudden-desu.net · 19/09/2026
Man, prototype Pai was cute with the blush marks and smile. Final version included for reference.
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Game Preservation Society @gamepresint.bsky.social · 19/09/2026
Japan's golden age of gaming, from our archive. This week: Schwarzschild (PC-88SR, ©Kogado 1988) — a strategy game built as a story, where a small star-nation's young king gathers allies to survive a war engulfing the galaxy. www.patreon.com/gamepres/pos...
patreon.com
Game Preservation Society — We're saving Japanese Video Games!
Get more from Game Preservation Society on Patreon. We're saving Japanese Video Games!. Support Game Preservation Society and get exclusive access to their work.
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Jtduckman @jtduckman.bsky.social · 19/09/2026
the virtua racing game over always gave me a sorta astral-ascension type vibe, as if its the games way to gently return you back to reality
static.klipy.com
SpongeBob's Mysterious Ascension
ALT: SpongeBob's Mysterious Ascension
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SUDDEN・DESU @sudden-desu.net · 19/09/2026
Mentaiko spaghetti for lunch, probably my favorite quick, “dump it all together and eat” food
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SUDDEN・DESU @sudden-desu.net · 19/09/2026
Tired: DAY-TOOO-NAAAAAAAAA Wired: GAAAaaaaaame OOO-BAaaaaaa........
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SUDDEN・DESU @sudden-desu.net · 18/09/2026
Really wish they had actually used those colorful, fun typefaces/logos in Virtua Racing...
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SUDDEN・DESU @sudden-desu.net · 18/09/2026
Was going through my many binders of Sega paperwork for more Virtua Fighter research (shocking.), when I saw this... Hey wait, 1993 is way too early for Sonic the Fighters... Ahh, it's actually an earlier name for SegaSonic Cosmo Fighter. (oh and there's Virtua Fighters at the top.)
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SUDDEN・DESU @sudden-desu.net · 17/09/2026
3人合わせてパ○ュームです!
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SUDDEN・DESU @sudden-desu.net · 17/09/2026
Part of the Virtua Fighter research, believe it or not...
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SUDDEN・DESU @sudden-desu.net · 17/09/2026
in case you forgot where the cool kids hang out
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SUDDEN・DESU @sudden-desu.net · 17/09/2026
Hmmmm.....
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ikaringo @ikaringo4444.bsky.social · 17/09/2026
ライヤ #闘姫伝承
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SUDDEN・DESU @sudden-desu.net · 17/09/2026
Can you just imagine seeing Virtua Formula on the floor at AOU 1993? How mindblowing that must have been? What a setup. What a force Sega used to be...
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SUDDEN・DESU @sudden-desu.net · 17/09/2026
You know what? The internet is a free place. I take it back, copy whatever you want to TCRF, as much as you want.
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SUDDEN・DESU @sudden-desu.net · 17/09/2026
I guess if we're gonna have a typhoon *again*, may as well be when the kids are home from school anyway...
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The Japan Times @japantimes.co.jp · 17/09/2026
Tropical Storm Dujuan may bring rainfall during the Silver Week holidays next week, putting a damper on vacation plans.
ebx.sh
Tropical Storm Dujuan may hit Japan over upcoming Silver Week holiday
Rain is expected over the rare five-day holiday — an alignment that has not occurred in 11 years — putting a damper on vacation plans.
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SUDDEN・DESU @sudden-desu.net · 16/09/2026
New Patreon post up! I'm super, super excited for this one: Virtua Fighter has some real interesting stuff hidden away, including some substantial remnants of its "Barcode Battler" mode that used an actual barcode reader. Check it out! 👇 www.patreon.com/SUDDENDESU/p...
patreon.com
Virtrua Fighter: Barcodes, Debug Tools, Tournament/League Mode, and more... | SUDDEN DESU
A barcode scanner on a fighting game...?
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Dave@Not-Convention Recovery @sasuraiger.bsky.social · 16/09/2026
gamesoftrobo.ghost.io/super-real-m... "So throughout, Venus Returns is kind of shocking. Not at all in terms of its sexual content— which is again quite tame— but in terms of the level of detail, the pains taken, the way you can hear buttons unfastening. Turns out video games *are* art, after all."
gamesoftrobo.ghost.io
Super Real Mahjong: Venus Returns delivers the quaint nudity of another age
So throughout, Venus Returns is kind of shocking. Not at all in terms of its sexual content— which is again quite tame— but in terms of the level of detail, the pains taken, the way you can actually h...
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SUDDEN・DESU @sudden-desu.net · 16/09/2026
たしかにメガ○ライブだったらマウス代わりにヘッジホッグを使うのは当然だよ。 (ふせ字にしなくていいってば…)
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SUDDEN・DESU @sudden-desu.net · 16/09/2026
What a day, time for a bourbon.
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SUDDEN・DESU @sudden-desu.net · 16/09/2026
New Patreon post up! I'm super, super excited for this one: Virtua Fighter has some real interesting stuff hidden away, including some substantial remnants of its "Barcode Battler" mode that used an actual barcode reader. Check it out! 👇 www.patreon.com/SUDDENDESU/p...
patreon.com
Virtrua Fighter: Barcodes, Debug Tools, Tournament/League Mode, and more... | SUDDEN DESU
A barcode scanner on a fighting game...?
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SUDDEN・DESU @sudden-desu.net · 16/09/2026
Wow, lots of mail arriving today... - Kat's Run - Need the manual for research on an upcoming arctle - VF Maniax... for an upcoming article. - Yume Kōjō 87 Zenkiroku, with its high quality images of the early Sega Mach Vision, for Sega Retro
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SUDDEN・DESU @sudden-desu.net · 16/09/2026
Oh man, the best thing about preorders is completely forgetting about them, and then getting a surprise in the mail months later!
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SUDDEN・DESU @sudden-desu.net · 15/09/2026
The background and sprite art in Sailor Moon arcade is really gorgeous...
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SUDDEN・DESU @sudden-desu.net · 15/09/2026
The color behind the TIME icon in Virtua Fighter changes? And has a meaning? Yes and yes. :)
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SUDDEN・DESU @sudden-desu.net · 15/09/2026
I've scrubbed all my past contributions to TCRF from their site. I ask that any finds I post or have posted here or on the blog *not* be re-posted to the TCRF wiki. Thank you.
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SUDDEN・DESU @sudden-desu.net · 15/09/2026
Seems like its compatible with PC. That was an insta-purchase. www.youtube.com/watch?v=NgUQ...
youtube.com
HORI Arcade Classic Pro for Nintendo Switch™ 2 製品紹介PV
YouTube video by HORI 公式チャンネル
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SUDDEN・DESU @sudden-desu.net · 11/09/2026
I wasn't sure which article I wanted to finish and post next, but oh man... I think I've decided. It's gonna be another landmark Sega game. Maybe you've heard of it... :)
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SUDDEN・DESU @sudden-desu.net · 11/09/2026
New Patreon post! Kat's Run (Super Famicom) has a couple hidden messages in its mode 7 course maps... Join the Patreon to get updates and new findings before they make it into the blog post... and maybe even for some Patreon exclusives very soon...? www.patreon.com/SUDDENDESU/p...
patreon.com
Kat's Run - Hidden Messages in Maps | SUDDEN DESU
Kat's Run one of those games that hits that sweet spot for me: cute anime girls paired with cars/mechs/other technology. And... man I wish
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SUDDEN・DESU @sudden-desu.net · 11/09/2026
This 'lil guy has been locked away in the game's data since 1990. It's about time we set him free. You can read all about him and how to restore him in Rad Mobile here: sudden-desu.net/entry/rad-mo...
sudden-desu.net
Rad Mobile - Input Codes, Broken Gameplay Elements, and Cut Content
There's more to Rad Mobile than the Sonic rear-view mirror ornament: Input codes, buggy and half finished functionality, and lots of unused content.
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台羽正 @tadashidaiba.bsky.social · 11/09/2026
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SUDDEN・DESU @sudden-desu.net · 11/09/2026
This 'lil guy has been locked away in the game's data since 1990. It's about time we set him free. You can read all about him and how to restore him in Rad Mobile here: sudden-desu.net/entry/rad-mo...
sudden-desu.net
Rad Mobile - Input Codes, Broken Gameplay Elements, and Cut Content
There's more to Rad Mobile than the Sonic rear-view mirror ornament: Input codes, buggy and half finished functionality, and lots of unused content.
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SUDDEN・DESU @sudden-desu.net · 11/09/2026
Forget about Sonic, forget about Flicky... Let's bring back Mr. Nastyface to his proper place of glory in Rad Mobile!
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Kelly ♡☆ @kellygoround.bsky.social · 10/09/2026
welp looks like i'm gonna spend some time getting real friendly with these panel buttons
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rabidrodent @rabidrodent.bsky.social · 10/09/2026
neat
astro city mini flicky
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SUDDEN・DESU @sudden-desu.net · 09/09/2026
Let's take a deep dive into Rad Mobile, Sega's first 32-bit game and Sonic's first appearance. We got: Weird input codes! Broken gameplay elements! Lots of cut content! And a new rear-view mirror ornament! Check it out! 👇👇👇👇👇 sudden-desu.net/entry/rad-mo...
sudden-desu.net
Rad Mobile - Input Codes, Broken Gameplay Elements, and Cut Content
There's more to Rad Mobile than the Sonic rear-view mirror ornament: Input codes, buggy and half finished functionality, and lots of unused content.
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SUDDEN・DESU @sudden-desu.net · 09/09/2026
Let's take a deep dive into Rad Mobile, Sega's first 32-bit game and Sonic's first appearance. We got: Weird input codes! Broken gameplay elements! Lots of cut content! And a new rear-view mirror ornament! Check it out! 👇👇👇👇👇 sudden-desu.net/entry/rad-mo...
sudden-desu.net
Rad Mobile - Input Codes, Broken Gameplay Elements, and Cut Content
There's more to Rad Mobile than the Sonic rear-view mirror ornament: Input codes, buggy and half finished functionality, and lots of unused content.
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SUDDEN・DESU @sudden-desu.net · 07/09/2026
Do you remember IRC? Do you have an aversion to Discord's epic gamer quirk chungus sensibilities? Do you like retro Japanese pop culture, with a focus on old games? Consider yourself old-school otaku? Join #neokobe on irc.synirc.net! Come join and idle with us.
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SUDDEN・DESU @sudden-desu.net · 07/09/2026
"Oh the Rad Mobile article is almost done," I thought. "Let's go ahead and announce it for Monday!" I thought. "Surely I won't find *even more* unused content to write about and won't be rushed to finish the article on time," I thought...
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VGDensetsu @vgdensetsu.bsky.social · 06/09/2026
Tetris in Japan, a thread: I’ve been thinking for some time now that the success of the Famicom version of Tetris and, more broadly, the popularity of Tetris in Japan owes a great deal to Sega’s arcade version. Both versions were released in December 1988, but according to Henk Rogers, the Famicom
title screen of the arcade version of Tetris by Sega
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台羽正 @tadashidaiba.bsky.social · 06/09/2026
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SUDDEN・DESU @sudden-desu.net · 06/09/2026
Mail’s here. Not a game card for once, but a telephone card! And come back on Monday for a new article - pic related ;)
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SUDDEN・DESU @sudden-desu.net · 06/09/2026
Mail’s here. Not a game card for once, but a telephone card! And come back on Monday for a new article - pic related ;)
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SUDDEN・DESU @sudden-desu.net · 05/09/2026
Something is... different here in Sailor Moon arcade. What is it... hmmm....
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SUDDEN・DESU @sudden-desu.net · 02/09/2026
Tired: Rad Mobile is the first appearance of Sonic the Hedgehog in a video game as a rear-view mirror ornament. Wired: The game also has a hidden Flicky ornament, hidden behind an input code.
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