Click & Drag is the title of todays XKCD comic, and it’s caused a stir online.
From the forums…
The mario level isn’t just any random level, it’s a perfect replica of world 1-1 of the original Super Mario Bros.
Not only that, but he made sure to include the hidden block to the left of the first pit that’s invisible unless you actually hit it.
To see a full stitch, click here. But it’s not as fun as experiencing the comic.