One of these people, who has already ported quite a few other NES titles to SNES, like the original Megaman and Metroid to name a few, is renowned romhacker and developer infidelity, who has just released a brand-new SNES port, this time taking in the challenge of porting over an NES title that used the exclusive Konami VRC2 mapper, this one being Contra. This includes the entirety of the original games being ported over to the superior SNES hardware, with some slight changes and even MSU-1 music playback.
But infidelity isn't the only romhacker being involved in porting over NES titles to the SNES, as romhacker rumbleminze has also worked on other titles on his own, like Super Dodge Ball, and released another port of a classic NES title, with the title being Chip 'n Dale: Rescue Ranger. This port also supports MSU-1 music playback, and also video playback with the help of the MSU-1 code.
Both infidelity and rumbleminze have created great SNES ports so far, and it's most likely that they'll jump into another NES SNES port once they're fonde squeezing out bugs and glitches from their current releases, and while it's still unknown what port infidelity might work on next, rumbleminze has already shared his next title, that one being the original Double Dragon.