bbbbbr @bbbbbr.bsky.social · 01/10/2026The emu interrupt situation did improve, so now I can bring over the classic petris skullcat intro scanline effect. 081
bbbbbr @bbbbbr.bsky.social · 24/09/2026In the quest (hopefully not futile) to use a single vblank interrupt source across most #casioloopy emus (can't right now), I wrote a test ROM for it. Not sure emu maintainers, who have their own things to do, will use it. I've done some emu work but am not good at it. github.com/bbbbbr/loopy... 080
bbbbbr @bbbbbr.bsky.social · 19/09/2026Was trying to get nmi and irq0 interrupts working (for vblank shadow oam copy) and dabbled with hblank some. Stumbled across this nice twisty bar effect. Camera footage since emus I can run don't support the interrupts 🥲. New loopy MiSTer core handles it reasonably well (little jitter aside) 091
bbbbbr @bbbbbr.bsky.social · 18/09/2026The #Petris port to #CasioLoopy console becoming very playable. Feels good to cross that threshold. Still lots of jank and polish needed. The (incomplete) frog border evolved out of re-using shrub tiles & need to fill extra screen space compared to Game Boy Color. Might try for various pet borders. 081
bbbbbr @bbbbbr.bsky.social · 17/09/2026We have pets, and they are gettin' long! Scrapped and redid half my porting changes to the #Petris gameplay logic. Way cleaner and working gameplay came together much faster. Obvs still screen cleanup and game notification porting to do, but that should be more straightforward. #casioloopy #loopy 041
bbbbbr @bbbbbr.bsky.social · 12/09/2026Petris Title and Settings screens progress on #CasioLoopy. Two layers of parallax semi-transparent clouds and sine text wiggle. Settings logic came over with minor changes. With more #gbdk api compat done porting is going faster. Turning out to be a pleasant console to dev on. #retrogaming #loopy 0123
bbbbbr @bbbbbr.bsky.social · 09/09/2026(From last week) ~Full RGB444 rendering on the #casio #loopy using blend mode. Hardware palette is 256 colors, but also has 2 "screen" layers that can be blended. So I put the Blue channel on one screen (1 pal) and Red X Green (15 pals) on the other. Output looks good! About 4k colors. #casioloopy 3142
bbbbbr @bbbbbr.bsky.social · 09/09/2026Ran into glitches running port in progress on real loopy hardware. Issue was not present in the emulator. My mistake was loading tile data w/ 8 bit access, vram seems to require 16 bit access. 16 is faster anyway until I start using DMA. Made a small test ROM for that scenario. #casioloopy 160
bbbbbr @bbbbbr.bsky.social · 04/09/2026A funny thing about porting from Game Boy to a console with a higher res screen is figuring out what to do with all the extra space. In this case playing around with a nicer font and more background on the options screen. Time and experience help too. Font is BoldPixels by @yukipixels.bsky.social 151
bbbbbr @bbbbbr.bsky.social · 31/08/2026Made a demo/example implementation for supporting the IG usb keyboard adapter and shared a PR for it (only added input for the main GRID page as a starter). Was fun to try out and pretty straightforward. TBD whether the dev is interested in something like that. github.com/Cirocular-Vl... 110
bbbbbr @bbbbbr.bsky.social · 27/08/2026Seems like half the time I spend learning to write homebrew for a new console is making idiosyncratic tooling... Compact non-python ones must be out there, maybe just hard to find? Ended up writing a little console RGB color bit depth reducer for PNGs. 3101
bbbbbr @bbbbbr.bsky.social · 16/08/2026It's a cool technique! It also showed up in those Game of Tobi 3d voxelish demos. 140
bbbbbr @bbbbbr.bsky.social · 13/08/2026aten_panzana released patch for #gameboy #Pokemon Red/Blue on #MegaDuck. (based on the pret disasm) On hardware requires MD2+MBC5 SRAM cart. Theres demo picoDuck firmware & upcoming flash carts. Can also run in SuperJunior SameDuck emu (".md25s" ext) Patch: aten-panzana.itch.io/mega-duck-pa... 0112
bbbbbr @bbbbbr.bsky.social · 05/08/2026The legendary #Workboy found a new home! I ported the ROM to work on the #MegaDuck laptop (a #GameBoy clone). Not the hardware we wanted, but...it's hardware that exists! Keyboard, Real Time Clock and all. Free #DuckDuckWorkboy #rompatch on the itch page: bbbbbr.itch.io/mega-duck-pa... #romhacking 3359
bbbbbr @bbbbbr.bsky.social · 01/08/2026Found a hidden treasure in #GameBoy #Workboy ROM (looking for Bank 0 free space) Menu shown when run without keyboard connected has hidden "Backup Options" entry. To reveal search for "ITCMRT" in phone app (cart sram must be init-ed). Appears to Dump/Restore cart SRAM to keyboard over link port. 160
bbbbbr @bbbbbr.bsky.social · 30/07/2026New release: little #GameBoy and #MegaDuck on-console memory hex viewer / editor. Made it for inspecting save data on the Duck Laptop where the SRAM can be on a separate cart than the ROM. Possibly of use for casual Game Boy memory peeking and poking too. github.com/bbbbbr/gameb... 0194
bbbbbr @bbbbbr.bsky.social · 16/07/2026Made a source-patch #MegaDuck port of the recent #Celeste Classic #GameBoy version by Rous/joshop. Playable and fun even on blurry oem screens. bbbbbr.itch.io/megaduck-cel... Patch and binary made and shared with permission, only needed minor edits to get it running on the good duck. #retrogaming 0226
bbbbbr @bbbbbr.bsky.social · 11/07/2026Some tiny #megaduck console icons drawn and rom patched into the title screen. 0110
bbbbbr @bbbbbr.bsky.social · 11/07/2026Taking a short break from main project for a quick afternoon #MegaDuck port of someone else's new (open source) homebrew Game Boy game. Only minor changes required to get it running. Hope to be able to release it soon. Surprisingly playable on laptop model considering blurry low contrast screen. 071
bbbbbr @bbbbbr.bsky.social · 16/06/2026Poll results are in! Mostly the same as 2024. (Whats MAIN way people play #GameBoy / Color games) Combined results from Mastodon, Bluesky, and barely any Twitter this year. Very un-scientific and un-rigorous! 😅 #gbdev #gameboycolor #retrogaming #gbdk #gbstudio #rgbds 3152
bbbbbr @bbbbbr.bsky.social · 01/05/2026Could be fairly efficient. Not sure how @coffeepowerup.bsky.social implemented, but my reproduction of theirs only has 2 calls (when x/8 or y/8 changes) - One fill_bkg_rect() to clean up trailing edge - One set_bkg_tiles() to copy a fixed pre-made attrib map with the torch shape made of palettes 010
bbbbbr @bbbbbr.bsky.social · 18/04/2026Two taxidermied birds at a museum #gameboycamera #gameboy #photography 0161
bbbbbr @bbbbbr.bsky.social · 31/03/2026Did an IPS screen mod for the Supaboy handheld #SNES clone. Viewing angles are soooo much better. I'm really bad at getting flex cables into their connectors, but eventually prevailed. 1120
bbbbbr @bbbbbr.bsky.social · 29/03/2026I've added your palette/attribute approach to my catalog page of torch effects. 😀 (in gbdk using assets to match the other examples in the repo) github.com/bbbbbr/gb-to... 381
bbbbbr @bbbbbr.bsky.social · 16/03/2026OK, apparently couldn't resist one more feature in #QRPaint (v0.9.4). Added a Spray tool with a slightly over-engineered random spray and flow rate. 😄 bbbbbr.itch.io/game-boy-qr-... #Gameboy #Megaduck #pixelart #retrogaming 2233
bbbbbr @bbbbbr.bsky.social · 15/03/2026Small update to #QRPaint (v0.9.3) that adds selectable fill style for the Circle and Rectangle tools. bbbbbr.itch.io/game-boy-qr-... #Gameboy #Megaduck #pixelart 0164
bbbbbr @bbbbbr.bsky.social · 10/03/2026New version of QR-Paint with some fun features: - Draw with #SNES Mouse when plugged into a Super #GameBoy (building on demo by vinheim3) - Windows XP desktop themed SGB Border - #MegaDuck build with Printer support #retrogaming #pixelart #qrpaint bbbbbr.itch.io/game-boy-qr-... 15912
bbbbbr @bbbbbr.bsky.social · 07/03/2026The output size of the #GameBoy printer is cute, but the larger print format of the #MegaDuck (a Game Boy clone) printer is much better for pinning up or the fridge door. (coming soon to #QRPaint: a Mega Duck port) GB on left, Duck on right #retrogaming 1131
bbbbbr @bbbbbr.bsky.social · 23/02/2026Thanks for the kind words, drawings and suggestions about #QRPaint! New version updates -Game Boy Printer support -Hold B for fast cursor -Analogue Pocket build GB Printer had light testing, let me know about issues bbbbbr.itch.io/game-boy-qr-... #GBDK #RetroGaming #PixelArt #GameBoyColor #GameBoy 1131
bbbbbr @bbbbbr.bsky.social · 19/02/2026What if you could misuse a @furrtek.bsky.social GB-303 music cart as an etch-a-sketch in QR-Paint? Just trying it out, so far not planning to make it a formal part of #QRPaint since it would result in some feature limitations. #GameBoy #EtchASketch 4283
bbbbbr @bbbbbr.bsky.social · 17/02/2026Draw on the Game Boy and share direct to your phone with a #QRCode! No extra hardware and without the internet. QR-Paint is a small paint program for the #GameBoy with a fun way to export drawings. bbbbbr.itch.io/game-boy-qr-... #GBDK #RetroGaming #PixelArt #GameBoyColor 1123781
bbbbbr @bbbbbr.bsky.social · 03/02/2026Been working on something fun. More details "coming soon" (TM). #GameBoy #Retrogaming #Pixelart 3333
bbbbbr @bbbbbr.bsky.social · 15/01/2026Thanks! Your self published version is present. If the incube8 version is digital only then it won't be included since these charts focus on physical cart releases. 100
bbbbbr @bbbbbr.bsky.social · 15/01/2026Full 2025 #GameBoy homebrew / indie Cart Release charts. Holding steady but 2022 was still peak. Big publishers down a bit, self-published up. Now with interactive web charts (links in reply) Data from @dmgpage.bsky.social : dmgpage.com/homebrew-rel... #gbdev #retrogaming #indiedev #retrodev 2144
bbbbbr @bbbbbr.bsky.social · 05/01/2026Might be cool to see that screen with the color bars. bbbbbr.itch.io/gbc-colorbars Recently compared oem vs non-backlit GBBoy colour which seems to have 3-bit rgb output instead of 5-bit (the range clamping could be due to ORing the top 2 bits together, and same for bottom 2 bits). 131
bbbbbr @bbbbbr.bsky.social · 04/01/2026The Year Wrapped for #GBDK & #ZGB! 2025, another good year for releases! Here's a browse of #GameBoy, #NES & #SMS/#GameGear games people made with #GBDK2020. Check out the gallery & give some a try, most free to download & play. gbdk-2020.github.io/gbdk-2020-ga... #indiedev #retrogaming #retrodev 43915
bbbbbr @bbbbbr.bsky.social · 04/01/2026Finished Infinity- had a great time. Gameplay and difficulty were reasonably balanced (bit easier than expected), UI worked well, overall polished and well done. Long time since playing an rpg, was a decent return to the genre. Congrats to the team on finishing development. #infinitygbc #gameboy 1171
bbbbbr @bbbbbr.bsky.social · 02/01/2026Carrot successfully delivered to goat. Would be ok with this as an alternate end to the game. 😅 #infinitygbc #gameboy #gameboycolor 1130
bbbbbr @bbbbbr.bsky.social · 19/12/2025Ohh, this is like WinRoach (for windows 3.1!) but wayyy cuter :) 220
bbbbbr @bbbbbr.bsky.social · 05/12/2025👍 Buy buy buy buy buy buy. And happy it can be done somewhat direct to artists. 140
bbbbbr @bbbbbr.bsky.social · 27/11/2025It 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) 000
bbbbbr @bbbbbr.bsky.social · 26/11/2025An 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) 2254