The most complicated thing on Scratch that I have ever done. This. Took. FOREVER! So please love it. For those of you who don't know what the Fibonacci sequence is, look it up, it's too complicated for me to tell you here. No, just kidding. You start with one. You add one to one and get two. You add one to two and get three. You add two to three and get five. You add three to five and get eight. You add five to eight and get 13. And it continues forever!