Plutiedev
@plutiedev.com
Plutiedev's official account! Tweets by iwis occasionally edited by Sik. 日本語がいい。 #MegaDrive #homebrew #メガドライブ puru puru pururun~♪
Miniplanets? sik.itch.io/miniplanets
(I'd recommend the Remix version since it's a visual and sound upgrade overall)
(I'd recommend the Remix version since it's a visual and sound upgrade overall)
Miniplanets by Sik
3D platformer for an old console
sik.itch.io
November 11, 2025 at 7:46 PM
Miniplanets? sik.itch.io/miniplanets
(I'd recommend the Remix version since it's a visual and sound upgrade overall)
(I'd recommend the Remix version since it's a visual and sound upgrade overall)
I can confirm that's exactly what it does.
The only "catch" is that if you pay attention the road (and especially the grass) seems to lose detail far away — they did this to reduce the tile count so they could cram in more frames (I think it uses 8 frames in total).
The only "catch" is that if you pay attention the road (and especially the grass) seems to lose detail far away — they did this to reduce the tile count so they could cram in more frames (I think it uses 8 frames in total).
November 10, 2025 at 2:11 AM
I can confirm that's exactly what it does.
The only "catch" is that if you pay attention the road (and especially the grass) seems to lose detail far away — they did this to reduce the tile count so they could cram in more frames (I think it uses 8 frames in total).
The only "catch" is that if you pay attention the road (and especially the grass) seems to lose detail far away — they did this to reduce the tile count so they could cram in more frames (I think it uses 8 frames in total).
Also funny you mention downloading games since their original idea was to let you download games *to floppy disks* mdshock.com/2018/07/08/t... (that never panned out, of course)
November 8, 2025 at 5:20 AM
Also funny you mention downloading games since their original idea was to let you download games *to floppy disks* mdshock.com/2018/07/08/t... (that never panned out, of course)
Yeah the Saturn had two modems and respective browsers to go with them (one in Japan, a different one overseas)
segaretro.org/Sega_Saturn_... (Japan)
segaretro.org/NetLink_Inte... (overseas)
Fun fact: the NetLink browser was made by the same company who later made the Dreamcast browser.
segaretro.org/Sega_Saturn_... (Japan)
segaretro.org/NetLink_Inte... (overseas)
Fun fact: the NetLink browser was made by the same company who later made the Dreamcast browser.
Making sure you're not a bot!
segaretro.org
November 8, 2025 at 5:17 AM
Yeah the Saturn had two modems and respective browsers to go with them (one in Japan, a different one overseas)
segaretro.org/Sega_Saturn_... (Japan)
segaretro.org/NetLink_Inte... (overseas)
Fun fact: the NetLink browser was made by the same company who later made the Dreamcast browser.
segaretro.org/Sega_Saturn_... (Japan)
segaretro.org/NetLink_Inte... (overseas)
Fun fact: the NetLink browser was made by the same company who later made the Dreamcast browser.
Reposted by Plutiedev
This comes at a performance cost, since writing to the RAM buffer is done byte-per-byte on the 68k CPU. But it saves *tremendously* on ROM space, since you can read Knuckles' sprites from the S&K ROM and the level sprites from the S2 ROM, without having to ship pre-converted versions of either. 5/12
November 2, 2025 at 8:44 PM
This comes at a performance cost, since writing to the RAM buffer is done byte-per-byte on the 68k CPU. But it saves *tremendously* on ROM space, since you can read Knuckles' sprites from the S&K ROM and the level sprites from the S2 ROM, without having to ship pre-converted versions of either. 5/12
Reposted by Plutiedev
They solved this by altering the routine that queues a DMA transfer of Sonic's sprites from ROM to VRAM. It now "pre-scrambles" the pixels of Knuckles' sprites into a RAM buffer, then queues a DMA transfer from RAM to VRAM. If you apply the Sonic 2 palette, the colors are suddenly unscrambled. 4/12
November 2, 2025 at 8:44 PM
They solved this by altering the routine that queues a DMA transfer of Sonic's sprites from ROM to VRAM. It now "pre-scrambles" the pixels of Knuckles' sprites into a RAM buffer, then queues a DMA transfer from RAM to VRAM. If you apply the Sonic 2 palette, the colors are suddenly unscrambled. 4/12
The other concern is the patch ROM. Sonic 2 already didn't fit and needed its own separate 256KB ROM (which increased the cartridge's cost). Throwing in Sonic 1 into the mix would require an even larger (and more expensive) ROM.
November 3, 2025 at 5:52 AM
The other concern is the patch ROM. Sonic 2 already didn't fit and needed its own separate 256KB ROM (which increased the cartridge's cost). Throwing in Sonic 1 into the mix would require an even larger (and more expensive) ROM.
And yeah Aquatic Ruin's water is an oversight, but ironically could have been fixed easily by just switching to another palette row (because there are shades ready to use at the right indices already)
Doing it would also affect Chemical Plant but it still looks just fine with the palettes there too
Doing it would also affect Chemical Plant but it still looks just fine with the palettes there too
November 3, 2025 at 5:48 AM
And yeah Aquatic Ruin's water is an oversight, but ironically could have been fixed easily by just switching to another palette row (because there are shades ready to use at the right indices already)
Doing it would also affect Chemical Plant but it still looks just fine with the palettes there too
Doing it would also affect Chemical Plant but it still looks just fine with the palettes there too
I recall reading an analysis somewhere that the reason why they put the green in the middle of the red shades is *because* of the flickies (it causes the least "glitching" in that position), so yes that one was definitely intentional.
November 3, 2025 at 5:48 AM
I recall reading an analysis somewhere that the reason why they put the green in the middle of the red shades is *because* of the flickies (it causes the least "glitching" in that position), so yes that one was definitely intentional.
