lidnariq wrote: ↑Tue May 25, 2021 1:44 pm
That sure looks like you found a bug/design flaw in the game. It should generate the whine at 7.5kHz that you hear.
The same occurs with Erika to Satoru no Yume Bouken.
Plus, the wiki says (NSF page) that it uses registers $4800 and $F800. What about register $E000:$40? Is it unused?