01-23-2026, 11:53 PM
Hello everyone, as promised I created this thread because I have a ROM hack project to develop, the game I'm modding is Super Mario Bros for the NES, the gimmick is to embed the Game Genie codes, create the lookup table to activate and deactivate the codes per level, and design the levels based on that.
One detail of this ROM hack is that I won't change the mapper, it'll stay at NROM. For that, I'm looking at the disassembly and overwriting the codes and datas that I won't use, like the demo actions and the 2 player mode, and restricting the number of worlds to 7 (7-4 would be the last level). I'm using the Asar assembly to apply the custom 6502 assembly codes.
The estimative to develop and finish this project is about 6 to 7 months, because besides gaining familiarity with the level editor, I have to test the custom 6502 assembly codes I'm putting on the ROM hack.
At the moment I don't have screenshots to show, I hope in the next days I have something to show.
One detail of this ROM hack is that I won't change the mapper, it'll stay at NROM. For that, I'm looking at the disassembly and overwriting the codes and datas that I won't use, like the demo actions and the 2 player mode, and restricting the number of worlds to 7 (7-4 would be the last level). I'm using the Asar assembly to apply the custom 6502 assembly codes.
The estimative to develop and finish this project is about 6 to 7 months, because besides gaining familiarity with the level editor, I have to test the custom 6502 assembly codes I'm putting on the ROM hack.
At the moment I don't have screenshots to show, I hope in the next days I have something to show.
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