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Screw box art, watch the intro to this game and try to guess what genre it will be.
https://www.youtube.com/watch?v=QCwvVpfhi7k&t=30s

For those following this topic, you might be interested to know just overwriting tiles is a bigger pain than it should be. The RLE-compressed data stream has to be the same length no matter what and the loop that reads it must terminate with the same chr-ram bytes getting filled in. Otherwise the gr...

You'll just have to learn programming (6502 assembly and NES hardware required; a PC-based language like Python is recommended) to do this properly. I figured out in a few minutes how to scramble the offending graphics beyond recognition (without replacing them). The compression format is a simple R...

Nintendo's Tetris updates 4 horizontal rows every frame when lines are completed and blanks out some descending rows briefly to hide the processing. It uses single-screen mirroring.

On top of the basics provided by Tokumaru this is how I'd handle it: -Keep a copy of the background in the offscreen nametable. -Play a simple animation when a line is completed so the updated field doesn't have to appear right away. Most versions of Tetris do this. -Update the offscreen nametable (...

That was probably 7-4 of "Lost Levels" - I don't think it can be done in SMB1.

It doesn't even matter if Nintendo has a case or not - they can shut down any emulator project with the proverbial snap. Sony's case against Bleem! was dismissed, but not before shutting that company down (that said, Bleem! was selling their emulator). The Dolphin devs are right - they don't want to...

Whatever source code in this leak probably isn't much more useful for N64 and Wii emulation than what emu devs already know. There's even a good chance the programmer comments and naming conventions would create more trouble just figuring out the code than it's worth. When you apply to big gaming co...

What is surprising is that they could make contract that made it "illegal" for a developer to port their game to competitor systems, this is clearly against free market. At worst Nintendo could threaten to limit or stop doing business with them, but this hurts both parties. I could see reasons so t...

I distinctly remember someone here made a MM9 NES demo that had map scrolling (but no gameplay). It would be interesting to see how the swinging platforms in Jewel Man's stage would work without miserable flickering (maybe a mapper IRQ?).

I'm pretty sure fan translations are available since a long time (there's even 2 concurrent translations of DQ5). But if you mean when they came out, yes indeed. Seen from today, the time period between when those games were released and when fan translations were made available in the early 2000s ...

You want the 30-col buffer so the cpu has as little work as possible in copying the tiles to PPUDATA. The vram data should just be ready to go once the NMI fires. In the code above you'd replace PPUDATA with the buffer (and obviously add an extra var to juggle the index reg) and move it to the main ...

And also, of course, levels sometimes have their boss room entered from the top or the bottom (later MM games always enter from the left). There's however no room where you enter from the right I can remember of :( Just remembered MM9 has a boss room entered from the right. Not sure if you count Dr...

Couldn't it be done like sep #$20 ; 8-bit A lda #Bank24 pha plb ; data bank = Bank24 rep #$10 ; 16-bit X,Y or #$30 if you want 16-bit A also ldy #Addr16 lda a:$0000,Y ; 16-bit load, we don't want to access the direct-page This might save cycles over the "lda [dp]" method if used enough times in the ...

That's especially fun to do with the backflip in Rondo of Blood.