Ik i'm kinda awkward you can skip to 1:59 if you just want the riff & thank you to the people that make these contests happen you rock.
I did forget to mention in this though that I practiced those 7 guitar scale positions non stop like a crazy person to the point I can play them fast, slow, eyes close, and any key lol basically just saying to put in the time with these videos guys and practice them till you got it, it's worth it and I promise you'll get better.