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Strange color pattern on CRT TV in certain NES scenes

Strange color pattern on CRT TV in certain NES scenes
by on (#134682)
When I played "Ninja Gaiden" for the first time on a real CRT TV, I noticed some strange colors in certain cutscenes. The colors don't appear from the game, it's more the TV itself or some magnetic stuff.

However, unfortunately, the cutscenes don't stay on the screen for long, so analyzing it isn't really comfortable.

That's why I'd like to know from you: Is there any way to put the cutscenes on a separate ROM so that I can watch them on the TV with a PowerPak?

Alternately, is it possible to create some kind of savestate for the game that works with the PowerPak, so that I can trigger them at will?
Re: Strange color pattern on CRT TV in certain NES scenes
by on (#134683)
The PowerPak lets you apply Game Genie codes, you could probably find a code or two that would help you progress through the game quickly.
Re: Strange color pattern on CRT TV in certain NES scenes
by on (#134709)
Or use the Save State Mappers: http://kkfos.aspekt.fi/projects/nes/pow ... e-mappers/
Re: Strange color pattern on CRT TV in certain NES scenes
by on (#134767)
rainwarrior wrote:
The PowerPak lets you apply Game Genie codes, you could probably find a code or two that would help you progress through the game quickly.

Unfortunately, I didn't find a code that gets me right to the cutscene.
The problem is: Even if I have invisibility, I always have to run through the level, then I can check the TV for some seconds, then I have to start again. That would not be very comfortable. I need to be able to stop the game (or to reload the scene at will), so that I can check the problem out without having to hurry.

thefox wrote:

Thanks, I will check this out.

Wasn't there also some program that can convert bitmaps to an image in an NES ROM which then does nothing but show this image? Shouldn't this work quite well for my task? I just don't remember the name anymore.
Re: Strange color pattern on CRT TV in certain NES scenes
by on (#134773)
DRW wrote:
Wasn't there also some program that can convert bitmaps to an image in an NES ROM which then does nothing but show this image? Shouldn't this work quite well for my task? I just don't remember the name anymore.

My NES background graphics editor comes with a tool to convert .png files to .sav files for the editor, but the user has to supply the palette, and it doesn't support sprites.
Re: Strange color pattern on CRT TV in certain NES scenes
by on (#134789)
Alright, thanks. I will try all this once my PowerPak finally arrives.