Super Mario Bros. recreated on the Atari 2600

I have to admit, this is pretty darn impressive. Remember: Atari 2600 is a much different system compared to the NES, and it has many more limitations than Nintendo’s classic console. Its creator says that the finished product is “pretty close” to Super Mario Bros.

16 levels are included in this “demo” – World 1-1 through 4-4. Again, there are limitations that prevent it from being an exact clone, but it’s still incredibly neat.

There’s lots of additional information here.