bbbbbr
@bbbbbr.bsky.social
Scrapper. Napper. Occasional bit pusher
Game Boy games & Carts: https://bbbbbr.itch.io
(Wordyl, Petris, etc)
GBDK dev team member
MegaDuck info: https://megaduck.dev
Game Boy games & Carts: https://bbbbbr.itch.io
(Wordyl, Petris, etc)
GBDK dev team member
MegaDuck info: https://megaduck.dev
👍
Buy buy buy buy buy buy.
And happy it can be done somewhat direct to artists.
Buy buy buy buy buy buy.
And happy it can be done somewhat direct to artists.
December 5, 2025 at 8:23 AM
👍
Buy buy buy buy buy buy.
And happy it can be done somewhat direct to artists.
Buy buy buy buy buy buy.
And happy it can be done somewhat direct to artists.
It was marketed as a children's educational toy (the German model has"lern-computer" on the box).
There are a couple educational games which require the laptop model, but I think only 2 have been dumped so far. They can be run in the emulator for it (SuperJunior SameDuck)
There are a couple educational games which require the laptop model, but I think only 2 have been dumped so far. They can be run in the emulator for it (SuperJunior SameDuck)
November 27, 2025 at 4:44 AM
It was marketed as a children's educational toy (the German model has"lern-computer" on the box).
There are a couple educational games which require the laptop model, but I think only 2 have been dumped so far. They can be run in the emulator for it (SuperJunior SameDuck)
There are a couple educational games which require the laptop model, but I think only 2 have been dumped so far. They can be run in the emulator for it (SuperJunior SameDuck)
An obscure cpu clone of a #GameBoy won't support a system RTC date past 2011.
Found this Y2K12 bug while disassembling the system ROM of the #MegaDuck laptop model. The hardware itself could do it, but I guess they didn't think anyone would still use the console 15 years later (made in ~1995)
Found this Y2K12 bug while disassembling the system ROM of the #MegaDuck laptop model. The hardware itself could do it, but I guess they didn't think anyone would still use the console 15 years later (made in ~1995)
November 26, 2025 at 4:40 AM
November 24, 2025 at 8:42 AM
Will be cool to see how far it's come!
Also a prompt to update this little list of compo games that got published. Not sure I've posted about it before.
Also a prompt to update this little list of compo games that got published. Not sure I've posted about it before.
November 18, 2025 at 5:48 AM
Will be cool to see how far it's come!
Also a prompt to update this little list of compo games that got published. Not sure I've posted about it before.
Also a prompt to update this little list of compo games that got published. Not sure I've posted about it before.
A little test build just in case... 😉
November 17, 2025 at 9:37 AM
A little test build just in case... 😉
I see, it's emulator based functionality and the faux registers are placed into echo RAM.
paladin-t.github.io/kits/gbb/man...
paladin-t.github.io/kits/gbb/man...
November 7, 2025 at 11:39 PM
I see, it's emulator based functionality and the faux registers are placed into echo RAM.
paladin-t.github.io/kits/gbb/man...
paladin-t.github.io/kits/gbb/man...
After your last thread I wrote a small gameboy program (inspired by "Telling LYs" by @pineight.com ) to make a button press scanline timing histogram.
My understanding is some emulators may inject entropy into button press timing since that may be used for RNG seeding.
github.com/bbbbbr/gameb...
My understanding is some emulators may inject entropy into button press timing since that may be used for RNG seeding.
github.com/bbbbbr/gameb...
November 6, 2025 at 9:05 PM
After your last thread I wrote a small gameboy program (inspired by "Telling LYs" by @pineight.com ) to make a button press scanline timing histogram.
My understanding is some emulators may inject entropy into button press timing since that may be used for RNG seeding.
github.com/bbbbbr/gameb...
My understanding is some emulators may inject entropy into button press timing since that may be used for RNG seeding.
github.com/bbbbbr/gameb...
Andddd..... Here it is.
Den Of Snakes Four Player, a family of public domain pixel fonts.
Free download at:
bbbbbr.itch.io/den-of-snake...
#font #gameboy #pixelart #pixelfont
Den Of Snakes Four Player, a family of public domain pixel fonts.
Free download at:
bbbbbr.itch.io/den-of-snake...
#font #gameboy #pixelart #pixelfont
October 26, 2025 at 10:41 AM
Andddd..... Here it is.
Den Of Snakes Four Player, a family of public domain pixel fonts.
Free download at:
bbbbbr.itch.io/den-of-snake...
#font #gameboy #pixelart #pixelfont
Den Of Snakes Four Player, a family of public domain pixel fonts.
Free download at:
bbbbbr.itch.io/den-of-snake...
#font #gameboy #pixelart #pixelfont
Weird to charge for ROM of historical artworks (which aren't credited).
And the art suffers bad tile-attribute clash, would have looked a lot better in GBC hi-color.
LEFT: Gallery+
RIGHT: Hi-color
1. So bad had to guess: Jacob van Es (Fruits)
2. Monet (Sunflowers)
3. Grant Wood (American Gothic)
And the art suffers bad tile-attribute clash, would have looked a lot better in GBC hi-color.
LEFT: Gallery+
RIGHT: Hi-color
1. So bad had to guess: Jacob van Es (Fruits)
2. Monet (Sunflowers)
3. Grant Wood (American Gothic)
October 21, 2025 at 12:48 AM
Weird to charge for ROM of historical artworks (which aren't credited).
And the art suffers bad tile-attribute clash, would have looked a lot better in GBC hi-color.
LEFT: Gallery+
RIGHT: Hi-color
1. So bad had to guess: Jacob van Es (Fruits)
2. Monet (Sunflowers)
3. Grant Wood (American Gothic)
And the art suffers bad tile-attribute clash, would have looked a lot better in GBC hi-color.
LEFT: Gallery+
RIGHT: Hi-color
1. So bad had to guess: Jacob van Es (Fruits)
2. Monet (Sunflowers)
3. Grant Wood (American Gothic)
Den of GBBoys
Checking compatibility. #GBBoy Seal of Approval earned. Even though their clocks run fast the game stays in sync due to how it uses the 4 Player adapter.
Q: Is that older GBBoy Colour with a very scratched screen actually a color console?
A: No! They just changed light grey to red!
Checking compatibility. #GBBoy Seal of Approval earned. Even though their clocks run fast the game stays in sync due to how it uses the 4 Player adapter.
Q: Is that older GBBoy Colour with a very scratched screen actually a color console?
A: No! They just changed light grey to red!
October 14, 2025 at 6:50 AM
Den of GBBoys
Checking compatibility. #GBBoy Seal of Approval earned. Even though their clocks run fast the game stays in sync due to how it uses the 4 Player adapter.
Q: Is that older GBBoy Colour with a very scratched screen actually a color console?
A: No! They just changed light grey to red!
Checking compatibility. #GBBoy Seal of Approval earned. Even though their clocks run fast the game stays in sync due to how it uses the 4 Player adapter.
Q: Is that older GBBoy Colour with a very scratched screen actually a color console?
A: No! They just changed light grey to red!
Video of the game running on four game boys / clones
October 12, 2025 at 7:47 PM
Video of the game running on four game boys / clones
Den of Snakes, a new homebrew game for the Four Player #GameBoy adapter.
- Have a 4 Player adapter and play it? would love to see pix
- Find bugs or problems? let me know
Rom on Itch:
bbbbbr.itch.io/den-of-snake...
Open source:
github.com/bbbbbr/gbdk-...
#retrogaming #gbdev #nintendo #pixelart
- Have a 4 Player adapter and play it? would love to see pix
- Find bugs or problems? let me know
Rom on Itch:
bbbbbr.itch.io/den-of-snake...
Open source:
github.com/bbbbbr/gbdk-...
#retrogaming #gbdev #nintendo #pixelart
October 12, 2025 at 7:47 PM
Den of Snakes, a new homebrew game for the Four Player #GameBoy adapter.
- Have a 4 Player adapter and play it? would love to see pix
- Find bugs or problems? let me know
Rom on Itch:
bbbbbr.itch.io/den-of-snake...
Open source:
github.com/bbbbbr/gbdk-...
#retrogaming #gbdev #nintendo #pixelart
- Have a 4 Player adapter and play it? would love to see pix
- Find bugs or problems? let me know
Rom on Itch:
bbbbbr.itch.io/den-of-snake...
Open source:
github.com/bbbbbr/gbdk-...
#retrogaming #gbdev #nintendo #pixelart
Cool to see it getting close!
Might be useful to have a non-GBC lockout screen
Might be useful to have a non-GBC lockout screen
September 20, 2025 at 3:55 AM
Cool to see it getting close!
Might be useful to have a non-GBC lockout screen
Might be useful to have a non-GBC lockout screen
Lastly, here are the trends for toolchains in #gbcompo over time. As mentioned, mostly steady showing continued participation from all parts of the #Gameboy development community.
There's much more of a shift visible in music drivers.
#gbcompo21 #gbcompo23 #gbcompo25
There's much more of a shift visible in music drivers.
#gbcompo21 #gbcompo23 #gbcompo25
September 8, 2025 at 12:19 AM
Lastly, here are the trends for toolchains in #gbcompo over time. As mentioned, mostly steady showing continued participation from all parts of the #Gameboy development community.
There's much more of a shift visible in music drivers.
#gbcompo21 #gbcompo23 #gbcompo25
There's much more of a shift visible in music drivers.
#gbcompo21 #gbcompo23 #gbcompo25
For music drivers in #gbcompo25, #hugedriver is heavily preferred now but about ~12% of people still use #gbtplayer.
The only other music driver showing this time is #GBMod.
For SFX drivers #VGM2GBSFX has almost the entire share.
The only other music driver showing this time is #GBMod.
For SFX drivers #VGM2GBSFX has almost the entire share.
September 8, 2025 at 12:12 AM
For music drivers in #gbcompo25, #hugedriver is heavily preferred now but about ~12% of people still use #gbtplayer.
The only other music driver showing this time is #GBMod.
For SFX drivers #VGM2GBSFX has almost the entire share.
The only other music driver showing this time is #GBMod.
For SFX drivers #VGM2GBSFX has almost the entire share.
What tools were used to make #gameboy games in #gbcompo25 ? Similar to previous compos + new tooling.
- #gbstudio main share
- #asm, #gbdk / C, #zgb a couple
- New! #GBBasic #libgb++ #MatlabGB
"Unknown" == likely #asm (#rgbds, #wladx, etc)
Data using: github.com/bbbbbr/gbtoo...
#retrodev #gbdev
- #gbstudio main share
- #asm, #gbdk / C, #zgb a couple
- New! #GBBasic #libgb++ #MatlabGB
"Unknown" == likely #asm (#rgbds, #wladx, etc)
Data using: github.com/bbbbbr/gbtoo...
#retrodev #gbdev
September 7, 2025 at 11:58 PM
Ah, so maybe it's kind of like this approach (shin's) on the GB. Where the BG color is black and the highlighted area is non-BG color sprite pixels
September 7, 2025 at 11:48 PM
Ah, so maybe it's kind of like this approach (shin's) on the GB. Where the BG color is black and the highlighted area is non-BG color sprite pixels
A wild button approaches...
August 26, 2025 at 4:20 AM
A wild button approaches...
New release of #gbtoolsid: 1.5.3
A command line & web app to id tools used to build #GameBoy ROMs (such as #GBDK, #GBStudio, etc)
Changes:
-Detect GBBasic 1.1
-Detect Cross ZGB 2025.0
-Detect Matlab GB Rom Creator
Console: github.com/bbbbbr/gbtoo...
Web: bbbbbr.github.io/gbtoolsid_web/
#gbdev
A command line & web app to id tools used to build #GameBoy ROMs (such as #GBDK, #GBStudio, etc)
Changes:
-Detect GBBasic 1.1
-Detect Cross ZGB 2025.0
-Detect Matlab GB Rom Creator
Console: github.com/bbbbbr/gbtoo...
Web: bbbbbr.github.io/gbtoolsid_web/
#gbdev
August 25, 2025 at 9:25 AM
New release of #gbtoolsid: 1.5.3
A command line & web app to id tools used to build #GameBoy ROMs (such as #GBDK, #GBStudio, etc)
Changes:
-Detect GBBasic 1.1
-Detect Cross ZGB 2025.0
-Detect Matlab GB Rom Creator
Console: github.com/bbbbbr/gbtoo...
Web: bbbbbr.github.io/gbtoolsid_web/
#gbdev
A command line & web app to id tools used to build #GameBoy ROMs (such as #GBDK, #GBStudio, etc)
Changes:
-Detect GBBasic 1.1
-Detect Cross ZGB 2025.0
-Detect Matlab GB Rom Creator
Console: github.com/bbbbbr/gbtoo...
Web: bbbbbr.github.io/gbtoolsid_web/
#gbdev
#Minesweeper on the #GameBoy as it was meant to be played 😎
Forked a open source #GBDK minesweeper by Alberto Cozzi to add #SuperNintendo Mouse support via the link port.
github.com/bbbbbr/mine_...
Forked a open source #GBDK minesweeper by Alberto Cozzi to add #SuperNintendo Mouse support via the link port.
github.com/bbbbbr/mine_...
August 22, 2025 at 6:42 AM
#Minesweeper on the #GameBoy as it was meant to be played 😎
Forked a open source #GBDK minesweeper by Alberto Cozzi to add #SuperNintendo Mouse support via the link port.
github.com/bbbbbr/mine_...
Forked a open source #GBDK minesweeper by Alberto Cozzi to add #SuperNintendo Mouse support via the link port.
github.com/bbbbbr/mine_...
Now #SNES mouse works on #GameBoy Color, Pocket, SGB2, etc with Clock-out inverted. Some FPGA clones don't, though Analogue Pocket is ok.
The Hyperkin SNES mouse works too, with 1 byte offset. Movement is not as nice as Nintendo's, but useful since it's still being made.
github.com/bbbbbr/gbdk_...
The Hyperkin SNES mouse works too, with 1 byte offset. Movement is not as nice as Nintendo's, but useful since it's still being made.
github.com/bbbbbr/gbdk_...
August 19, 2025 at 6:28 AM
Now #SNES mouse works on #GameBoy Color, Pocket, SGB2, etc with Clock-out inverted. Some FPGA clones don't, though Analogue Pocket is ok.
The Hyperkin SNES mouse works too, with 1 byte offset. Movement is not as nice as Nintendo's, but useful since it's still being made.
github.com/bbbbbr/gbdk_...
The Hyperkin SNES mouse works too, with 1 byte offset. Movement is not as nice as Nintendo's, but useful since it's still being made.
github.com/bbbbbr/gbdk_...