Super Mario Bros. isn't the first appearance of Mario, or even the first Mario Bros. game, but it's the first introduction most of us had to the characters, and it's what most consider the first game in the core Mario series. It set the rules that platformers would follow even to the present day. There's no...

Yeah, Super Mario Bros. was great and it's pretty cool how the series has progressed since it's release. I remember being a kid in the 80's and being introduced to the NES, SMB, and Duck Hunt. I didn't own a NES when I was a kid, but I did get the Gameboy. My cousin had a NES and I loved it when I visited and we'd play it. Those are some of my fondest memories as a kid. He still has it and his games and I often wish I had his game library. I do now own a NES, but I haven't hooked it up in many years. I only own a few games for it, The Legend of Zelda, Final Fantasy, and Monster Party. Still, it's cool that Nintendo has released some of the games on their Virtual Console.
I wonder which classic NES game you'll write about next. Perhaps The Legend of Zelda. =)
That one is on my list, but I doubt it'll be next.
I'm not sure I ever beat the original SMB. I'm not sure how far I made it through the game, but if I have beaten it, it was probably once and I doubt even that. I'm absolutely sure the amount of hours I've spent on the game barely even scratches how many you've put into it.