Sean Riddle writes: "I dumped the Retro Station NX-85 1280-in-1. Along with the normal 44 pads, there were 3 more address lines at the top. They aren’t marked, so I have 8 dumps but I don’t know what order they should be in. I assume Haze can figure it out by examination or trial and error."
https://archive.org/details/retro-station-nx-85(This is a 1280-in-1 system so there's a lot of data in here- 256 MB in fact- but the Pikachu Gardman game should be in this dump .... somewhere. It appears to mostly be alphabetical in the data.)
(Logically it would be in mw9298.bin, which contains other "ETC" category games listed around the same point, like "New York Nyankies," "JB Harold Murder Club," "Panic Restaurant," "SD Ultraman," and "Utsurun Desu." If so I haven't spotted it.)
Many NES graphics are visible in the binaries, but sometimes they appear to be bit-shifted in some way, like the attached picture. Searching the hex for some of the hex of the Pikachu/Gardman graphics turns up no results.
177300 in the 97 binary is Snoopy's Silly Sports Spectacular, and 1c6ABf0 is Bugs Bunny's Crazy Castle -- in both cases these are very glitchy in YY-CHR, suggesting bit shift or bit reversal.
I should compare the hex here to the actual Snoopy ROM. 176B000 is snoopy with his medals, the CHR before the one with Charlie Brown .... this would be 2B010 in the ROM proper ...
03 1F 2F 6F F7 F7
would I think become:
14 97 D6 F6 7F 7F
It's therefore verifiable that Pikachu Wonder Rabbit is in binary 96 from around 135FF00 -- 13A1F00, something like that, but glitched consistently in this way.
1388000 in binary 96 is a glitched version of the HUD used in Pikachu Gardman (my hack) at 048010.
1398000 in binary 96 has the Pikachu player graphics, present in the Pikachu Gardman hack at 058010. It's consistent
1385000 is probably the title screen, matching Gardman at 45010