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Derek Yu

@mossmouth.bsky.social

https://mossmouth.com/

19,339 Followers  |  186 Following  |  368 Posts  |  Joined: 03.09.2023
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Posts by Derek Yu (@mossmouth.bsky.social)

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UFO 50 Deluxe Editions for Nintendo Switch are out of preorder and shipping now!

Take a look inside and pick up your own here: www.fangamer.com/products/ufo...

25.02.2026 19:37 — 👍 232    🔁 37    💬 5    📌 13

When you see "HPRshredder" and "Simon's Quest" pop up on the timeline and you know you've got to set aside an hour to enjoy peak retro game analysis...

23.02.2026 22:36 — 👍 45    🔁 4    💬 3    📌 0
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Someone asked me to animate it so I did

23.02.2026 00:54 — 👍 890    🔁 166    💬 17    📌 0

BTW in case you're interested, you can actually play the original PC-88 version of Hydlide on Nintendo Switch, courtesy of EGGCONSOLE!

🔗 www.nintendo.com/us/store/pro...

22.02.2026 20:46 — 👍 78    🔁 16    💬 1    📌 0

Those photos are amazing! A published book that collected scans of some of those arcade community notebooks would be so cool.

22.02.2026 02:03 — 👍 5    🔁 0    💬 1    📌 0

Screenshot sources:

The Tower of Druaga: en.wikipedia.org/wiki/The_Tow...
Courageous Perseus: www.hardcoregaming101.net/courageous-p...
Dragon Slayer: www.mobygames.com/game/18618/d...
Hydlide: www.mobygames.com/game/12807/h...

22.02.2026 02:00 — 👍 20    🔁 1    💬 0    📌 0
The Tower of Druaga (Arcade)

The Tower of Druaga (Arcade)

Courageous Perseus (PC-88)

Courageous Perseus (PC-88)

Dragon Slayer (PC-88)

Dragon Slayer (PC-88)

Hydlide (PC-88)

Hydlide (PC-88)

While we're celebrating Zelda's 40th, I want to give some love to some of the foundational action adventure games that predated it. Hydlide, in particular, deserves more respect outside of Japan for what it did for the genre in '84 (PC88).

Tower of Druaga, Courageous Perseus, Dragon Slayer, Hydlide

22.02.2026 01:55 — 👍 492    🔁 166    💬 18    📌 11
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01_illus_kt_entrance_gnp_dawwe Publication Source: Link to the Past Nintendo Power Players Guide 600 dpi scan, art by Katsuya Terada Image Source: Scanned and contributed by Dawwe because their guide had less blurry images than mi...

The Katsuya Terada illustration isn't technically of the first Zelda game, I don't think, but I always felt his work captured its spirit best.

Source: www.flickr.com/photos/histo...

21.02.2026 20:02 — 👍 46    🔁 0    💬 1    📌 0
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Shout out to The Legend of Zelda after 40 years! A game whose sense of exploration and adventure still feels unparalleled to me in many ways.

Art scans courtesy of @historyofhyrule.com: www.flickr.com/photos/histo...

Hand-drawn map by my dad, from when we played the game together in the 80s.

21.02.2026 20:02 — 👍 390    🔁 76    💬 7    📌 0

Genuinely unnerving trailer for this upcoming stop-motion horror game. Just like the horror movies I'm interested in, I'm alternately excited and apprehensive to see what it's about!

And the team's previous games, Judero/Mashina (also stop-motion) are on sale: store.steampowered.com/bundle/49099...

21.02.2026 19:33 — 👍 110    🔁 29    💬 3    📌 0

I LOVE the new art-style for Rift Wizard 3. The first two games were pretty utilitarian pixel-art, but the chalk-sketch aesthetic here is gorgeous.

19.02.2026 13:29 — 👍 57    🔁 2    💬 2    📌 0
26 Overlooked Sega Genesis RPGs & Strategy Sims from A-Z
YouTube video by Burst Error 26 Overlooked Sega Genesis RPGs & Strategy Sims from A-Z

Fresh one up on my Youtube today, an A-Z exploration exercise of RPGs and strategy games on the Genesis! youtu.be/83_uoaxoIqA
Hopefully a few in there you haven't seen before, enjoy!

16.02.2026 17:51 — 👍 51    🔁 18    💬 3    📌 0
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Games about Games Microtalks | Agenda | GDC Festival of Gaming "Games about Games" are a rising trend in interactive works which are self reflexively about video games history, culture, and development. They often feature developers, players, or the history of th...

At GDC this year, I'll be one of several people giving a microtalk at this session:

schedule.gdconf.com/session/game...

The larger topic is "Games about Games" but my talk will be about game collections in particular.

13.02.2026 17:05 — 👍 24    🔁 3    💬 0    📌 0

I'm happy to hear that - thank you so much! I feel lucky to have gotten to work with some amazing people on them. 💓

12.02.2026 19:48 — 👍 4    🔁 0    💬 0    📌 0
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Ghosts 'n Goblins Resurrection is $2.99 on Steam buff.ly/EkS86AC
$10.49 Xbox buff.ly/o6QAntg

Deck verified

12.02.2026 18:26 — 👍 107    🔁 35    💬 4    📌 13
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Save 10% on Mewgenics on Steam Build the ultimate cat army through tactical breeding and send them into deep, challenging turn-based adventures. Draft abilities, collect items, and manipulate genetics across generations in this rog...

store.steampowered.com/app/686060/M...

10.02.2026 14:00 — 👍 416    🔁 104    💬 18    📌 20
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SAMURAI GUNN 2
⚔️ IS SO BACK ⚔️
Rebuilt from the ground up in our own engine, FASTER and DEADLIER than ever!
MORE to COME!
store.steampowered.com/app/1397790/...

06.02.2026 21:32 — 👍 241    🔁 69    💬 5    📌 5
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The Ana Spelunky Youtooz plush went well and she'll be shipping out later this year (ETA April). Thanks to everyone who preordered one and hope you enjoy!

It'd be fun to do another - if you're interested, let me know if there's a Spelunky character you'd be excited to see next!

09.02.2026 22:25 — 👍 65    🔁 2    💬 24    📌 0
Promo image for The Crimson Diamond on sale for 25% off for Steam Typing Fest, Feb 5 to Feb 9 starting at 10am Pacific. The border has keyboardy type keys and the image in the middle is The Crimson Diamond's key art, featuring protagonist Nancy Maple holding a gem up to the moonlight while kneeling by a river.

Promo image for The Crimson Diamond on sale for 25% off for Steam Typing Fest, Feb 5 to Feb 9 starting at 10am Pacific. The border has keyboardy type keys and the image in the middle is The Crimson Diamond's key art, featuring protagonist Nancy Maple holding a gem up to the moonlight while kneeling by a river.

The Crimson Diamond is 25% off for Steam Typing Fest 2026! 🎉⌨️ It's a text parser cozy mystery adventure set in early 1900s Canada! If you've never typed "open door" to open a door, this may be the perfect time to see if your brain is wired to love that! ❤️‍🔥🧠 store.steampowered.com/app/1098770/...

05.02.2026 19:15 — 👍 111    🔁 49    💬 4    📌 5

Yeah, pretty crazy!

07.02.2026 02:42 — 👍 2    🔁 0    💬 0    📌 0
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I don't typically put much thought into chain scoring or scoring in beat 'em ups at all, but this one got me hooked on trying to go higher! And it's a free browser game! From the creator of Fight'N Rage.

Really impressive PICO-8 graphics, too!

👊 sebagamesdev.itch.io/backstreet-w...

07.02.2026 02:29 — 👍 196    🔁 26    💬 6    📌 1

🟥🟥🟥
🟥😮🟥
🟥🟥🟥

30.01.2026 22:40 — 👍 2    🔁 0    💬 0    📌 0

bop! 😊

KOLYDR: adamatomic.itch.io/kolydr

28.01.2026 19:34 — 👍 75    🔁 6    💬 1    📌 1

Hi I'm on bluesky now! Last year was a hell of a year as my 2-year-old was diagnosed with cancer (!?!?!?) and spent much of it in the hospital. Thankfully it's in remission now. What a ride. Hoping to slowly get back into gamedev stuff this year!

17.01.2026 13:06 — 👍 199    🔁 20    💬 17    📌 0

Haha very true...!

27.01.2026 03:09 — 👍 1    🔁 0    💬 0    📌 0
Every RYGAR Game & Port - a Complete Retrospective (Arcade, NES, & Beyond)
YouTube video by Burst Error Every RYGAR Game & Port - a Complete Retrospective (Arcade, NES, & Beyond)

Just posted my latest - a Rygar-spective covering every game and port in this weird and well loved series! youtu.be/onRg_sydwS0
Spreading the word is very appreciated :)
LET'S FIGHT!

26.01.2026 20:24 — 👍 69    🔁 27    💬 5    📌 5

The third update for UFO 50 on Switch is out now (v1.8.10)!

This one fixes a single issue where a detached Joy-Con could register multiple inputs.

But we're currently working on more bugfixes and optimizations, for a larger update in the future.

26.01.2026 20:24 — 👍 82    🔁 2    💬 6    📌 0

Whoa, congratulations!!! ✨🌟✨

26.01.2026 19:09 — 👍 1    🔁 0    💬 0    📌 0

I'm so glad you feel that way! When I hear someone got into a new genre because of UFO 50 it always makes me happy.

23.01.2026 19:47 — 👍 3    🔁 0    💬 0    📌 0

Haha yeah... I'm in the same boat but I think what makes up for the loss of reaction time as you get older is the increased patience and discipline. I'm finding that a lot of these games (including GnG) are less about reaction time than I thought.

23.01.2026 00:30 — 👍 1    🔁 0    💬 0    📌 0