June 19th, 2009

Protection violation

This is how Oh! My Goddess Quiz looks like when dumped and run in Makaron:

NAOMI 2009-06-19 Oh! My Goddess #1NAOMI 2009-06-19 Oh! My Goddess #2

Obviously it's broken. The textures on Bellandy are wrong and the texts are unreadable.
Yesterday I figured out how the ROM banking protection works on this cart. Turns out OMG doesn't use it... but it gave me an idea I've tried just now. Bingo, another form of protection was present - and after dumping the necessary data and patching the cart image I got this:

NAOMI 2009-06-19 Oh! My Goddess #2NAOMI 2009-06-19 Oh! My Goddess #3

Much better, wouldn't you say? :)
It still won't work reliably in Makaron due to a bug in the game code but I will work that around soon. Protection on this particular cart is rather easy to defeat, others might be more challenging...
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