Difference Between SMB1 for NES/FC and FDS

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Main - ROM Hacking - Difference Between SMB1 for NES/FC and FDS

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GameGenie81

Posted on 09-22-08 05:20 PM (rev. 3 of 09-22-08 05:24 PM)

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Why is it that some invalid worlds (after the normal eight worlds) are different on the Famicom/N.E.S. and the Famicom Disk System versions?

One of these is the infamous Minus World (formally: World 36). On the Famicom/NES cartridge version, it is similar to World 2-2 in every regard (only with the Game Genie code KILLLU can you go beyond this; the "other two" are both graphics hacks of World 3-4; the "second" stage with underwater graphics and the "final" stage with ground graphics). But on the FDS version, the first level is an underwater hack of World 1-3/5-3. The second stage is a carbon copy of World 2-3/7-3, and the final stage is an underground graphics hack of World 4-4.

What is all the code in the game's ROM contents between the cartridge and FDS disk versions that makes some of these invalid worlds different?

~Ben

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Insectduel

Posted on 09-23-08 08:04 PM

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That's because the 2 ROMs has different formats and sizes. I haven't check these pretty often but I'm going to check these hexidecimal offsets tonight.

Main - ROM Hacking - Difference Between SMB1 for NES/FC and FDS

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