Riff 1a, 1b (1a - with light palm muting, 1b - without)
E|-----------------------------------------------------------------|
B|-----------------------------------------------------------------|
G|-----------------------------------------------------------------|
D|-3-3-3-6-2-2-2-2-------3-2-2-2-2---------------------------------|
|-1-1-1-4-0-0-0-0-4-4-4-1-0-0-0-0-3-3-3-3-4-4-4-4-2-2-2-4-3-3-3-3-|
E|-----------------2-2-2-----------1-1-1-1-2-2-2-2-0-0-0-2-1-1-1-1-|

Riff 2 - VERY inaudible riff, so, this is only my opinion
E|---------------------------------------------------------------------|
B|---------------------------------------------------------------------|
G|----------------------------------------------------------------a.h.-|
D|------------2---1------------2---1------------2---1------------2---1-|
A|----3---2------------3---2------------3---2------------3---2---------|
E|-00-1-0-0-0---0---00-1-0-0-0---0---00-1-0-0-0---0---00-1-0-0-0---0---|
  ..   .   .   .   ..   .   .   .   ..   .   .   .   ..   .   .   .

Riff 3
E|-------------------------|
B|-------------------------|
|-10-10-10/11-10-10-10/11-|
E|-------------------------|
B|--8--8--8/-9--8--8--8/-9-|
G|-------------------------|

Riff 4
E|------------------------------------------------------|
B|------------------------------------------------------|
G|------------------------------------------------------|
D|------------------------------------------------------|
A|-4-4-4-2-4x----4-3-2-4x----4-4-4-2-4x---5-5-5-5-5-5-5-|
E|-2-2-2-0-2x----2-1-0-2x----2-2-2-0-2x---3-3-3-3-3-3-3-|

Riff 5
E|-----------------------------------------------------------------|
B|-----------------------------------------------------------------|
G|-----------------------------------------------------------------|
D|-----------------------------------------------------------------|
A|-4-4-4-2-4---------4-3-2-4-------4-4-4-2-4---------5-5-5-5-5-5-5-|
|-2-2-2-0-2-0-0-0-0-2-1-0-2-0-0-0-2-2-2-0-2-0-0-0-0-3-3-3-3-3-3-3-|
            . . . .         . . .           . . . .