this song is super easy--the bass is hard to hear at the intro but listen very carefully. Intro (0:00) G]----- D]----- A]-2~~-- ~~ = hold note E]----- Main Riff (0:05) G]---------r-----------------r------| D]---------e-----------------e------| A]--2--4---s---2~~--4444-2---s--2~~-| E]---------t-----------------t------| repeat the main riff till song ends