When a perfect idea appears, it feels obvious in retrospective. Feels like it has always been there.

Many early Video Games do not feel obvious. They feel like developers were still trying to figure out how to turn codes into a playable experience. Playing some of the worst Atari games feels like pulling teeth.

Then there's Mario. Every single game early game came fully formed and impecable designed. Both Donkey Kong and Mario Bros. were fun arcade games, but this Super Marios Bros. leaped into a full world. Made previous Mario games feel small and incomplete in retrospect.

Shigeru Miyamoto's level of design is just brilliant. Knows how to introduce us all to what the game is like in less than a minute and fully absorbs you as the levels get more and more frustrating, while not having the enemies ever cheat like they would do in «Nintendo Hard» games, such as Punch-Out! and Castlevania.

You can see that some stuff would need work, like the repetitiveness fo the final Bosses or how they would be defeated by just either spaming fireballs or sacrificing a power up and reaching the end of the platform. But the brilliance in Miyamoto's later games is in how he would be able to keep improbing on such a perfect formula.

As a whole, Super Mario Bros. is a very balanced game. A fully realized work.