There are basically only two riffs so learn them well.  The number of times each chord is strummed/played varies.... I think.  
Just play with the song and you’ll get it.

Chords for the “What’s really going wrong” riff

l--5------3-----2------0-------l
l--5------3-----2------0-------l
l--6------4-----3------1-------l
l--7------5-----4------2-------l
l--7------5-----4------2-------l
l--5------3-----2------0-------l


Chords for the other riff

l---5---8-----10---------------l
l---5---8-----10---------------l
l---6---9-----11---------------l
l---7---10---12---------------l
l---7---10---12---------------l
l---5---8-----10---------------l

Cool @$$ electric guitar solo

l--15-12-----------------l----15-12-------------l---15-12---------------l---15-12---------------l
l------------15-12-------l-------------12---------l-------------12----------l------------15-----------l
l----------------------15--l--------------------------l---------------------------l---------------------------l
l----------------------------l--------------------------l---------------------------l---------------------------l
l----------------------------l--------------------------l---------------------------l---------------------------l
l----------------------------l--------------------------l---------------------------l---------------------------l

l---15-12---------------------------------l-------12-12-12---------l---------12-15----(?)------l
l---------------------------------------------l---------------------15-----l----15------------------------l
l-------------12----------------------------l------------------------------l--------------------------------l
l-----------------12------------------------l------------------------------l--------------------------------l
l---------------------12--------------------l------------------------------l--------------------------------l
l-------------------------14-12---(?)----l------------------------------l--------------------------------l

l----15*------------------------------------------------------------------------------------l
l----------15*-------------------------------------------------------------------------------l
l----------------------------------------------------------------------------------------------l
l----------------------------------------------------------------------------------------------l
l----------------------------------------------------------------------------------------------l
l----------------------------------------------------------------------------------------------l

(?) Guitar effects
* You alternate between these two for a while.  I didn't count.  So just play with the song and figure it out.