You might not have ever wondered what Super Mario Bros. would look like if it were made today, but YouTube user Deloix did.
Deloix created a pair of videos that depicts what the classic NES platformer might look like if it were created with modern day graphics and sound. Deloix's recreations of Levels 1-1 and 1-2 don't show a totally reimagined version of the game; instead, they depict a familiar looking game world, albeit one that's slightly more three-dimensional and has more realistic explosions and sound effects.
Watch them. Then watch them again. It might be enough to make you wish for a modern-day remake.