I've been crocheting for years and I've never made anything more complex than an earband with a button-hole lol! This is beyond amazing. Anything Mario related is cool in my book. I've never thought of using granny squares for pixel images. Oh the possibilities...!
I love it, and started a granny square Mario-themed project of my own, inspired by yours. I have a question, though. As you were sewing the squares together, how did you determine what color of yarn to use when you had two different colored squares touching?
This is a really good question. Also, did you just whip stitch the squares together? (I think whip stitch is the right term...?)
And I'll be PM-ing you shortly =] Once again, this is awesome