Intro Version 1:
G|-----------------------------------------------------|
D|-----------------------------------------------------|
A|-----------------------------------------------------|
E|-1-1---1-1---1-1---1-1---1-1---1-1---1-1---1-1---1-1-|

Intro Version 2:
G|-----------------------------------------------------|
D|-----------------------------------------------------|
A|-----------------------------------------------------|
E|-0-0---0-0---0-0---0-0---0-0---0-0---0-0---0-0---0-0-|

You play the intro until the main riff sets in.

Main Riff Version 1:
G|--------------------------------------------------------------------------|
D|--------------------------------------------------------------------------|
A|-5555555555-8888-13131313131313131313-12121212-55555555555555555555555555-|
E|--------------------------------------------------------------------------|

Main Riff Version 2:
G|------------------------------------------------------------|
D|-0000000000-3333-8888888888-7777-00000000000000000000000000-|
A|------------------------------------------------------------|
E|------------------------------------------------------------|