First acoustic part (0:42)
      B      D      F#                G
(JB)  Waaait Waaait Waaait you mother-fucker
      G            D        A
      we challenge you to a rock off,
      G           D                   A
(Both)Give us one chance to rock your socks off

Second acoustic part (1:24)
      E
(JB)  If we win,
      E                  Am                  E
      you must take your sorry ass back to hell
      E                 Am   F  C   G   A
      and also you will have to pay our rent

Beelzeboss:
      Am
      AND WHAT IF I WIN?

           G               (strum on...
(JB)  Then you can take Kage back to hell..
(KG)  What!?
(JB)  Trust me kage it's the only way
(KG)  What the fuck are you talkin about?
            ...)        C
(JB)  To be your little bitch

Third acoustic part (3:03)

Tenacious D :
(JB)  NOOOO! c'mon Kage bring the thunder
                      Gm                             Bb
(KG)  There's just no way that we can win that was a masterpeice
(JB)  Listen to me-
                  D                              Gm
(KG)  He rocks to hard because he's not a mortal man
(JB)  God dammit Kage,
                 Gm
      he's gonna make you his sex slave,
                 Bb
      your gonna gargle Mayonnaise
(KG)  Noo
                D                          Gm
(JB)  Unless we bust a massive monster mamajam
(KG)  Dude,
            Gm
      we've been through so much shit
         Eb
(JB)  De-activated lasers with my dick
      Bb                                D
(BOTH)Now it's time to blow this fucker down

      Gm
(JB)  c'mon Kage now it's time to blow doors down
      Eb                         Bb           F
(KG)  I hear you Jables now it's time to blow doors down
      Gm
(JB)  Light up the stage cuz its time for a showdown
      Eb                             Bb         F
(KG)  We'll bend you over then we'll take ya to brown town
      Gm
(BOTH)Now we've got to blow this fucker down
      Eb                       Bb          F
(KG)  He's gonna rape me if we do not blow doors down
      Gm
(JB)  C'mon Kage cuz it's time to blow doors down
      Eb               Bb           F
(KG)  OOOOOOh (?) It's time for the black out

this is the part where the distorted guitar comes in, just play the power chords with a 
of palm muting

             Gm              D
(JB)  Hey educationer, Beelzeboss,
                   Bb                  D
      we know your weakness our rocket-sauce
                  Gm                     D
      we rock the cassbaw, and blow your mind
                Bb                   D
      we will defeat you, for all mankind
                   Gm                   D
      you hold the scepter, we hold the key
                  Bb                F
      you are the devil, we are the D
                 Gm            D
(BOTH)We are the D, We are the D
                 Bb            F
      We are the D, We are the D
                Gm             D
      We are the D, We are the D
                 Bb            F
      We are the D, We are the D
                Gm             D     (Go nutz from here :D )
      We are the D, We are the D
                 Bb            F
      We are the D, We are the D
                Gm             D
      We are the D, We are the D
                 Bb            F    End on G
      We are the D, We are the D