The second riff is just a variation, not much difference
After repeating this a couple of times, it goes to
Then comes the chorus, you'll have to figure out the rhythm, its not that hard.
1st Ending
After that there is a break where it is just bass then play the main riffs a number of times
then do the chorus (the only difference in the second chorus is that you repeat the
End Riff 2
After doing the second end riff, you just play the first end riff two more times and end
song by letting the 12 ring out