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.
Reposted by Ray Castello
Doing some live streaming of Super Sunny World development for about an hour, starting now!
www.youtube.com/watch?v=-8V2...
www.youtube.com/watch?v=-8V2...
NES Game Programming - Super Sunny World
YouTube video by Matt Hughson
www.youtube.com
November 16, 2025 at 5:37 PM
Doing some live streaming of Super Sunny World development for about an hour, starting now!
www.youtube.com/watch?v=-8V2...
www.youtube.com/watch?v=-8V2...
Reposted by Ray Castello
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
But each of the 8 unique bosses need to be re-coded a bit to support this. Should be worth it I hope!
#nesdev
November 20, 2025 at 4:50 AM
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
But each of the 8 unique bosses need to be re-coded a bit to support this. Should be worth it I hope!
#nesdev
Reposted by Ray Castello
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.
A game that made it's debut on the NES after nearly 40 years after its original release...
Montezuma's Revenge is back and getting the LRG physical treatment with a striking orange NES cartridge!
Available to preorder from Dec 2!
Montezuma's Revenge is back and getting the LRG physical treatment with a striking orange NES cartridge!
Available to preorder from Dec 2!
November 22, 2025 at 12:45 AM
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.
Reposted by Ray Castello
🎉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!💖 #screenshotsaturday
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!💖 #screenshotsaturday
November 22, 2025 at 8:08 PM
🎉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!💖 #screenshotsaturday
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!💖 #screenshotsaturday
Reposted by Ray Castello
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...
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...
November 23, 2025 at 10:29 PM
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...
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...
Reposted by Ray Castello
3D artists, show your wireframes!
November 14, 2025 at 6:29 PM
3D artists, show your wireframes!
Reposted by Ray Castello
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 🙃
November 20, 2025 at 7:53 PM
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 🙃
Reposted by Ray Castello
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
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
Square Brothers by Two Black Cats
Solve spatial challenges and steal shiny treasures on this brand new Megadrive game.
twoblackcats.itch.io
November 18, 2025 at 8:35 PM
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
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
Reposted by Ray Castello
This one has been a labor of love. It's close!
Castlevania II Simon's Quest is the next NEXT game to get the SNES upgrade!
🔗 youtu.be/p0Ido17GsFA
@goshdarnbatty.bsky.social @rumbleminze.bsky.social
🔗 youtu.be/p0Ido17GsFA
@goshdarnbatty.bsky.social @rumbleminze.bsky.social
November 20, 2025 at 11:27 PM
This one has been a labor of love. It's close!
Reposted by Ray Castello
@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.
November 22, 2025 at 2:38 AM
@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.
Reposted by Ray Castello
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...
www.youtube.com/watch?v=voG5...
Castlevania II SNES Port Pre-release Test Playthrough
YouTube video by Rumbleminze
www.youtube.com
November 23, 2025 at 12:42 AM
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...
www.youtube.com/watch?v=voG5...
Reposted by Ray Castello
I reworked the camera, improved clipping and rewrote the physics with acceleration and drift, the feel is better now
October 23, 2025 at 5:24 PM
I reworked the camera, improved clipping and rewrote the physics with acceleration and drift, the feel is better now
Reposted by Ray Castello
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 :)
November 3, 2025 at 9:09 PM
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 :)
Reposted by Ray Castello
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...
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...
Making a Mini-Boss (part 3) Final! | David "Mecha Zone" White
Get more from David "Mecha Zone" White on Patreon
www.patreon.com
November 16, 2025 at 10:22 PM
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...
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...
Reposted by Ray Castello
bone zone, future boss arena location in the making
November 21, 2025 at 1:12 AM
bone zone, future boss arena location in the making
Reposted by Ray Castello
little megadrive experiment
November 23, 2025 at 3:59 AM
little megadrive experiment
Reposted by Ray Castello
I've finally published a first version of my #FlaxEngine plugin. 😁
github.com/AcidicVoid/F...
It currently features #PSX style post processing with lowres rendering, authentic dithering, and optional integer scaling.
#AcidicDev #GameDev #IndieGame
github.com/AcidicVoid/F...
It currently features #PSX style post processing with lowres rendering, authentic dithering, and optional integer scaling.
#AcidicDev #GameDev #IndieGame
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
github.com
November 23, 2025 at 9:24 AM
I've finally published a first version of my #FlaxEngine plugin. 😁
github.com/AcidicVoid/F...
It currently features #PSX style post processing with lowres rendering, authentic dithering, and optional integer scaling.
#AcidicDev #GameDev #IndieGame
github.com/AcidicVoid/F...
It currently features #PSX style post processing with lowres rendering, authentic dithering, and optional integer scaling.
#AcidicDev #GameDev #IndieGame
Testing things on the Mega Drive.
I found something I was testing last year, Drive. The artwork is by Zuno.
I found something I was testing last year, Drive. The artwork is by Zuno.
November 22, 2025 at 10:27 PM
Testing things on the Mega Drive.
I found something I was testing last year, Drive. The artwork is by Zuno.
I found something I was testing last year, Drive. The artwork is by Zuno.
Reposted by Ray Castello
November 19, 2025 at 4:04 PM
Reposted by Ray Castello
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
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
Sega Genesis Game: Gilgamech - MINI BOSS
YouTube video by Mecha Zone
youtu.be
November 21, 2025 at 3:12 PM
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
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
Reposted by Ray Castello
Big up a la team 5customs_games qui me permet de ressortir régulièrement la Megadrive et prendre mon pied 🤩.
A ce moment, même si c'est censé être moi Ken le survivant, je ne le savais pas encore, mais j'étais déjà mort 🤣
A ce moment, même si c'est censé être moi Ken le survivant, je ne le savais pas encore, mais j'étais déjà mort 🤣
March 8, 2025 at 6:03 PM
Big up a la team 5customs_games qui me permet de ressortir régulièrement la Megadrive et prendre mon pied 🤩.
A ce moment, même si c'est censé être moi Ken le survivant, je ne le savais pas encore, mais j'étais déjà mort 🤣
A ce moment, même si c'est censé être moi Ken le survivant, je ne le savais pas encore, mais j'étais déjà mort 🤣
Reposted by Ray Castello
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.
The rest of the game is all in Japanese.
September 27, 2025 at 12:17 AM
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.
The rest of the game is all in Japanese.
Reposted by Ray Castello
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:
October 26, 2025 at 11:21 PM
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: