So what would make my Galaga look like this?

jehuie

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The game plays but it has weird doubled up graphics and wrong characters. The first link is a video clip of it in attract mode. The second is a video clip of it in test mode. There is also no sound.

Note: I haven't checked the +5 voltage yet because I don't see an obvious test point. I'll have to look somewhere to find that unless someone wants to point it out for me.

Here's the clips:

http://vimeo.com/15471002

http://vimeo.com/15471144
 
The game plays but it has weird doubled up graphics and wrong characters. The first link is a video clip of it in attract mode. The second is a video clip of it in test mode. There is also no sound.

Could be a lot of things... Bad 07xx or 00xx or address buffers would be the first things I'd check. (and their sockets, of course)
 
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