So I was messing around on my guitar the other day and I inadvertently figured out the main riff, at least I think it's right.
e-------------------------------------------------------------------------------------
b---------------------------------------------------------------------------------------
g---------------------------------------------------------------------------------------
d----------------2-0-----2-0-------------------------------------------------------------
a---0---2-3-0-------0--------2-3-0--repeat forever--------------------------------
E--------------------------------------------------------------------------------------------
sorry if it doesn't line up, I don't know how to format these things. Let me know what you think