With Hack Music
Used: NSMB Editor (for Editing Level) Nitro Explorer 1.2 (for Extract/Import .sdat) VGMTrans (for Extract .midi & .dls) Fl Studio (for Test) Anvil Studio (for Loops) midi2sseq usen in cmd.exe (for convert .midi to .sseq)
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Listen and look at this incredible video, it's a mod of NSMB with SML style. The music is also...