You remember the Super Mario Bros. theme WRONG!

In this video I explore the differences in sound between the original NES/Famicom and their clones. I also show a ROMhack I made to "fix" the duty cycle swap bug in Super Mario Bros. Link to my ROMhack at ROMhacking.net: https://www.romhacking.net/hacks/7712/ Check my project to document Brazilian games (bootleg or not): https://videogamebrasileiro.fandom.co... 0:00 Intro: differences in the Overworld theme 1:31 How the NES sound works 4:48 Differences in hardware between the NES and its clones 6:52 Can the duty cycle bug be fixed? 7:43 Super Mario Bros. Duty Cycle Swap Edition 8:39 Conclusion #supermariobros #famiclone #romhack