I decapped and visually dumped G&W Boxing BX-301: http://www.seanriddle.com/gameandwatch.html

Turns out that my electronic dump got all the bits, but shifted the bytes one position in pages 32-63. I'll look at the logic capture and see if I messed up the conversion. Or maybe my timing's still not quite right when I send the opcodes.

I also digitized the segments: http://www.seanriddle.com/bx301svg.7z

And scanned the background: http://www.seanriddle.com/bx301bkg.tif http://www.seanriddle.com/bx301bkgblur.tif