Nintendo Super System BIOS?

Scucci

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I'm looking for a good copy of the Super System bios... have a machine that's going to require the ... 0.5 version of the bios I believe it is? I haven't been able to find a good link to get it from and more over I'm not 100% sure what I should be looking for. I know it goes on a 27C256 EPROM, and none of the images I've found are anywhere NEAR that size.

I need it as I'm told that one of the games that's being put in the cabinet is going to require a new EPROM on the main board... anyone know about that? These new fangled machines and their crazy MTV and the rock music...

Any help would be much appreciated. I have the programmer and EPROMs here, just need a good, known good, copy of the upgraded bios.
 
Did you ever find any info on the updated bios? I need it too.

I got a Actraiser pcb and the character sprites are all mixed up. I was told that it would work with the updated bios. Can't find anything about this on Google.
 
Did you ever find any info on the updated bios? I need it too.

I got a Actraiser pcb and the character sprites are all mixed up. I was told that it would work with the updated bios. Can't find anything about this on Google.

Negative... Got nothing back from it.
 
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