So I decided today to work on a rom hack for Zelda Ii on NES, in which the dungeons are all placed in a row and only bosses are available (allowing you to just fight the bosses/decide on your experience). I had good success on emulator (FCEUX).
However, a few friends loaded their copies onto emulator, and the graphics in levels 4/5/7 were messed up notably as seen in this playthrough: https://youtu.be/xcis0bmVZyo
. Specifically, 4's background was very off, Gooma clearly had the wrong Sprite set loaded, as did most stuff in the Great Palace. Of course, it's annoying because I loaded it on my emulator, and it still works ok.
So my question: has anyone encountered this before (ideally with this game), and if so, do you have any suggestions on how to fix? I am half wondering if there is some uninitialized memory stuff going on, and hitting a pointer that in FCEUX works ok, but fails in the powerpak.
It could also (in the case of level 4) have to do with the fact that I tried to move it to West Hyrule (instead of Maze Island). Again, it was conveniently working on my emulator so who knows?
Either way, I figured I'd ask, hoping someone has seen something similar before. Thanks in advance for any help you may have!