Don't say it couldn't be done, as this 'programmer' has done it, with a bit of modding and hacking!
You own some SNES cartridges, but you only have NES console, well no problem, as you can now run SNES games on your original NES!
Now then, who's up for some Zelda: Breath of the Wild on Game Boy Color? -- Nah, I want to see Super Mario Odyssey for the newest console, the Nintendo Switch, running on my NES console, or better yet the NES Classic Mini, to prove you don't need the latest shit
Programmer Gets SNES Games Running On The NES With A Little Bit Of Hacking (via) NintendoLife