Ray Castello 's Avatar

Ray Castello

@raycastello.bsky.social

Scientist, researcher, and physics master with a specialization in mathematics. Experienced professor, multi-instrumentalist musician, chiptune composer, pixel art artist, and programmer.

729 Followers  |  2,758 Following  |  135 Posts  |  Joined: 03.09.2024  |  2.1295

Latest posts by raycastello.bsky.social on Bluesky

NES Game Programming - Super Sunny World
YouTube video by Matt Hughson NES Game Programming - Super Sunny World

Doing some live streaming of Super Sunny World development for about an hour, starting now!

www.youtube.com/watch?v=-8V2...

16.11.2025 17:37 โ€” ๐Ÿ‘ 10    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Video thumbnail

A big change I'm working on is allowing BOSSES to be shot with the PEARL POWER. I think it's the right thing to do, since it make the power-up feel more meaningful.

But each of the 8 unique bosses need to be re-coded a bit to support this. Should be worth it I hope!

#nesdev

20.11.2025 04:50 โ€” ๐Ÿ‘ 41    ๐Ÿ” 9    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Super fun game! It's got a great "pick up and play" style that is fun even for 5-10 minute bursts of play. Highly recommend.

22.11.2025 00:45 โ€” ๐Ÿ‘ 14    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Video thumbnail

๐ŸŽ‰Wow! Just hit 10k followers on Twitter!

I'm so thankful to be part of this enthusiastic and engaged community around the NES and Homebrew!

I spent years making Indie Games without finding an audience, but that completely changed with #nesdev!

Thank YOU so much!๐Ÿ’– #screenshotsaturday

22.11.2025 20:08 โ€” ๐Ÿ‘ 33    ๐Ÿ” 4    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Wow! Thank yoy

24.11.2025 21:54 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Post image

Here it is! Castlevania II: Enhanced Edition on the SNES!

Huge shoutouts to Bizqwit for original NES hack, it make this game so much more polished and approachable.

I'll drop some details in replies here; the hack is available here:

mega.nz/folder/g5Jl1...

or

archive.org/details/cast...

23.11.2025 22:28 โ€” ๐Ÿ‘ 162    ๐Ÿ” 71    ๐Ÿ’ฌ 10    ๐Ÿ“Œ 7

3D artists, show your wireframes!

14.11.2025 18:29 โ€” ๐Ÿ‘ 29    ๐Ÿ” 2    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1

Impressive. Would it be possible to add the cars? Is the source code for this beautiful project open source?

23.11.2025 21:20 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Video thumbnail

So it is possible to do 60fps 3d on the sega megadrive by using a very exotic indexing method to simulate 2 colors + alternating lines + fast DMA. Totally interlaced my brain ๐Ÿ™ƒ

20.11.2025 19:53 โ€” ๐Ÿ‘ 119    ๐Ÿ” 39    ๐Ÿ’ฌ 9    ๐Ÿ“Œ 0
Video thumbnail

We've finished the sword weapon for Solid-State Soldier!!

Next, destructible terrain!!!

(เฒ  o เฒ )ยค=[]:::::>

#megadrive #mdengine #homebrew #indiedev #gamedev #sgdk #pixelart

18.11.2025 01:28 โ€” ๐Ÿ‘ 16    ๐Ÿ” 8    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Preview
Square Brothers by Two Black Cats Solve spatial challenges and steal shiny treasures on this brand new Megadrive game.

We've just released the demo for Square Brothers!!

It includes a web version as well as the Megadrive ROM.

You can test it on @itch.io
twoblackcats.itch.io/square-broth...

It's the third game done with MD Engine!

#megadrive #mdengine #sgdk #game #pixelart #indiedev #gamedev

18.11.2025 20:35 โ€” ๐Ÿ‘ 16    ๐Ÿ” 9    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

This one has been a labor of love. It's close!

20.11.2025 23:27 โ€” ๐Ÿ‘ 30    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
A screenshot from the Mesen event viewer of the NES game Castlevania II in the starting town, with lots of blue pixels on it.

A screenshot from the Mesen event viewer of the NES game Castlevania II in the starting town, with lots of blue pixels on it.

@displacedgamers.bsky.social - you might appreciate this. This is the unmodified NES Castlevania II game, bankswitching 108 times in one frame. Maybe if you get a free weekend you can tell me why in the world it does this.

22.11.2025 02:38 โ€” ๐Ÿ‘ 23    ๐Ÿ” 5    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 0
Castlevania II SNES Port Pre-release Test Playthrough
YouTube video by Rumbleminze Castlevania II SNES Port Pre-release Test Playthrough

A full end to end play-through of my Castlevania II SNES port! Final testing is happening now, and barring any major issues I should be releasing it soon!

www.youtube.com/watch?v=voG5...

23.11.2025 00:42 โ€” ๐Ÿ‘ 35    ๐Ÿ” 8    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0
Video thumbnail

I reworked the camera, improved clipping and rewrote the physics with acceleration and drift, the feel is better now

23.10.2025 17:24 โ€” ๐Ÿ‘ 247    ๐Ÿ” 40    ๐Ÿ’ฌ 11    ๐Ÿ“Œ 5
Video thumbnail

Jumping! I want the driving to feel smooth and arcadey like a Sega Rally. I was never a big fan of Wipeout's physics, but I love the graphics obviously :)

03.11.2025 21:09 โ€” ๐Ÿ‘ 167    ๐Ÿ” 38    ๐Ÿ’ฌ 8    ๐Ÿ“Œ 3

That's really cool. I haven't tested this approach on the Mega Drive yet, but I'm getting inspired to try it.

23.11.2025 09:34 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Absolutely incredible. Making excellent use of the console's capabilities.

23.11.2025 09:33 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
Making a Mini-Boss (part 3) Final! | David "Mecha Zone" White Get more from David "Mecha Zone" White on Patreon

Part 3 of my Making a Mini-Boss series is now on my Patreon. Available to all members.
This wraps up the series and even gives a sneak peek at the next boss I'm working on!
#SegaGenesis #SGDK #MegaDrive #IndieDev #GameDev #SoloDev #Gilgamech

www.patreon.com/posts/making...

16.11.2025 22:22 โ€” ๐Ÿ‘ 12    ๐Ÿ” 5    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Video thumbnail

bone zone, future boss arena location in the making

21.11.2025 01:12 โ€” ๐Ÿ‘ 9    ๐Ÿ” 5    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
Video thumbnail

little megadrive experiment

23.11.2025 03:59 โ€” ๐Ÿ‘ 18    ๐Ÿ” 5    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
Preview
GitHub - AcidicVoid/Flax-PSX: Plugin that brings PSX-like visuals to your Flax Engine project Plugin that brings PSX-like visuals to your Flax Engine project - AcidicVoid/Flax-PSX

I've finally published a first version of my #FlaxEngine plugin. ๐Ÿ˜
github.com/AcidicVoid/F...

It currently features #PSX style post processing with lowres rendering, authentic dithering, and optional integer scaling.
#AcidicDev #GameDev #IndieGame

23.11.2025 09:24 โ€” ๐Ÿ‘ 21    ๐Ÿ” 10    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Post image Post image

Testing things on the Mega Drive.
I found something I was testing last year, Drive. The artwork is by Zuno.

22.11.2025 22:27 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

wow

22.11.2025 22:18 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Video thumbnail

luv my physics props #sgdk #gamedev

19.11.2025 16:03 โ€” ๐Ÿ‘ 26    ๐Ÿ” 7    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0
Sega Genesis Game: Gilgamech - MINI BOSS
YouTube video by Mecha Zone Sega Genesis Game: Gilgamech - MINI BOSS

My first (mini) boss!
It's simple but actually quite fun to battle. I learned a lot from programming all the different aspects. I posted a 3-part dev diary about it on my Patreon if you are curious.
www.patreon.com/c/mechazone

youtu.be/3oY2uPrjfxE

#Gilgamech #GameDev #IndieDev #SegaGenesis #SGDK

21.11.2025 15:12 โ€” ๐Ÿ‘ 18    ๐Ÿ” 8    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
Post image

Big up a la team 5customs_games qui me permet de ressortir rรฉguliรจrement la Megadrive et prendre mon pied ๐Ÿคฉ.

A ce moment, mรชme si c'est censรฉ รชtre moi Ken le survivant, je ne le savais pas encore, mais j'รฉtais dรฉjร  mort ๐Ÿคฃ

08.03.2025 18:03 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Post image 11.11.2025 21:28 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Post image

Ok, maybe someone knows more about this than me. But why does Castlevania II on the FDS have so much English text? The prologue and the ending are both entirely in English. Is that not odd? Did Japanese children know enough English to read this?

The rest of the game is all in Japanese.

27.09.2025 00:17 โ€” ๐Ÿ‘ 8    ๐Ÿ” 1    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0
Video thumbnail

Additionally, another cool romhack feature that I just finished is the map that's accessible when you pres Select, this map was available in the FDS manual, and maybe could help make sense of the crazy world Simon is in:

26.10.2025 23:21 โ€” ๐Ÿ‘ 27    ๐Ÿ” 5    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1

@raycastello is following 20 prominent accounts