Yeah, there is honestly no way to go back to the N64 after playing Block Fort in high rez 16:9 with the classic controller. The games are timeless, their hardware is not.
And who wants to play Super Mario Bros. like that anymore?
And if you've ever seen that fan made Ocarina of Time mod with high-rez textures and smoothed out models...sweet Jesus. I love playing my originals on real consoles, because Roms just feel.....I dunno...dirty? That, and I like being legal. Still, every so often some fan does something crazy like this.
Ocarina of Time cel-shaded
Mario 64 cel-shaded.