I don't know exactly how I was convinced into playing this game when I first saw it (Maybe it's the Cape Mario and Yoshi dragging me in), but man. After I loaded it, I knew I hit the jackpot. Super Mario Bros. 6 is more than just a Mario fangame. It is somewhat like the Sonic Generations of Mario fangaming, nostalgia-wise. You see, the game takes levels from several past Mario games, from the original Super Mario Bros (Of course..) to Super Mario World (Oh!) to New Super Mario Bros! There are also new original levels as well. Now, don't make fun of me when I say this, but, I almost went to tears of joy when I realized I entered into a Yoshi's Island-style underground level. That underground theme alone strikes a chord to me. But the fun doesn't stop there! How? You've got elements of SMB through Mario 64. What else could there be? Well, I advanced through the castle level, only to find out that the boss is >SPOILER ALERT< =GASP=!!!!! THE KOOPA BROS!!! Oh, my god!! I couldn't believe it at all....

And after beating them, I was saddened to know that this was only a demo.