There is no guitar part for the actual song, but this is what I've come up with...

The simple way to play the song is as follows:
Verse:
Dm (xx0231@1)                     Bb (x1333x@1)                                 A (x02220@1)                      Dm (xx0231@1) C#m (x13321@4)name="chord_xx0231@1">Dm
Here kitty kitty         There's too much Demon Blood         In These self appointed angels 
etc.
Chorus:
C (x32010@1)             G (320003@1)            DmI'll (xx0231@1)be your    Nightmare      Mirror
Do What you Do             to  Me
I'll be your    Nightmare      Mirror
Bb6 (x15xxx@1)    C6 (03221x@1)       Bb6 (x15xxx@1)    A6Colder (x04xxx@1)  Than A    Steel    Blade

Ending:  Dm C#m  Dm C#m   Dm C#m  Dm



Here's the more complicated breakdown:


Chords:
The song uses different variations of the main chords (which are Dm, Bb, A, C#m, C and G).

1-Dm__x.5.7.7.6.5                   
2-Dm__x.x.0.2.3.1                   
3-Dm__10.12.12.10.10.10           
4-Dm__x.x.12.14.15.11           

1-A#__6.8.8.7.6.6
2-A#__x.1.3.3.3.1

1-A__5.7.7.6.5.5
2-A__x.0.2.2.2.0

1-C#m__x.4.6.6.5.4
2-C#m__x.x.x.1.2.0                    
3-C#m__9.11.11.9.9.9                   
                                                        
1-G__3.2.0.0.3.3                     
2-G__x.10.12.12.12.10           
3-G__x.2.0.0.3.3

C__x.3.5.5.5.3
F6__x.x.10.10.10.10 
A#6__x.x.3.3.3.3
C6__x.x.5.5.5.5
A6__x.x.2.2.2.2

Intro:

1-Dm    1-Bb    1-A    1-Dm    1-C#m    1-Dm      X4

Verse1:

1-Dm                1-Bb                                                    
Here Kitty Kitty    There's too much demon blood    
1-A                       1-Dm    1-C#m    1-Dm
 In these self-appointed angels
1-Dm                            1-Bb  
Acting Like you're comatose    Speaking like a country rose
1-A                  1-Dm    1-C#m    1-Dm
Or a preacher's pet in drag
1-Dm                           1-Bb  
Banging on a kettle drum      Won't make you notice me
1-A                        1-Dm    1-C#m    1-Dm
Though you're bored beyond belief
1-Dm                              1-Bb 
Suckin' on an old man's thumb     Man it makes me feel so numb
1-A                            1-Dm        1-C#m    1-Dm
Gonna teach you how to make it Feel Good

Chorus:
C (x32010@1)          1-G       1-Dm
I'll be your Nightmare Mirror
C (x32010@1)         2-G        F6Do (15xxxx@1)what you Do      to Me
C (x32010@1)          1-G       1-Dm
I'll be your Nightmare Mirror
Bb6 (x15xxx@1)    C6 (03221x@1)      Bb6 (x15xxx@1)    A6Colder (x04xxx@1)  Than a    Steel    Blade

Bridge:  same as intro

Verse2:
1-Dm                              1-Bb                                                    
Get them while they're young      Yeah someone told me that
1-A                     1-Dm    1-C#m    1-Dm
But man I never saw it commin'
1-Dm                             1-Bb  
Gonna let myself go soon         Man, I'm gonna tear it down
1-A                     1-Dm    1-C#m    1-Dm
and maybe take my kitty with me
1-Dm                             1-Bb  
Girl you need some discipline    Girl you need some medicine
1-A                     1-Dm    1-C#m    1-Dm
Even though my heart is breaking
1-Dm                                1-Bb 
Never gonna straighten you up       Oh my god, what's wrong with me
1-A                            1-Dm        1-C#m    1-Dm
Can't seem to teach you how to Feel Good

Chorus:
C (x32010@1)          1-G       1-Dm
I'll be your Nightmare Mirror
C (x32010@1)         2-G        F6Do (15xxxx@1)what you Do      to Me
C (x32010@1)          1-G       1-Dm
I'll be your Nightmare Mirror
Bb6 (x15xxx@1)    C6 (03221x@1)      Bb6 (x15xxx@1)    A6Colder (x04xxx@1)  Than a    Steel    Blade

Verse3:

1-Dm                                  1-Bb                                                    
Skip skip skip skip de boid           skip skip skip de boid
1-A                           1-Dm                   1-C#m    1-Dm
Skip   Skip  Skipity boid     Skip skip skip skipity boid               X2

Skip skip skip skip de boid           skip skip skip de boid

Skip   Skip  Skipity boid     Skip skip skip skipity boid

Skip skip skip skip de boid           skip skip skip de boid
1-A                           1-Dm                   1-C#m    1-Dm
Skip   Skip  Skipity boid     Skip skip skip skipity boid
1-Dm                                   1-Bb 
Skip skip skip skip de boid           skip skip skip de boid
1-A                           1-Dm                   1-C#m    1-Dm
Skip   Skip  Skipity boid     Skip skip skip skipity boid

Continue with skat improv it you like

Chorus:
C (x32010@1)          1-G       1-Dm
I'll be your Nightmare Mirror
C (x32010@1)         2-G        F6Do (15xxxx@1)what you Do      to Me
C (x32010@1)          1-G       1-Dm
I'll be your Nightmare Mirror
Bb6 (x15xxx@1)    C6 (03221x@1)      Bb6 (x15xxx@1)    A6Colder (x04xxx@1)  Than a    Steel    Blade

Outro:
2-Dm   2-Bb   2-A   2-Dm   2-C#m  2-Dm
Ending:
2-Dm   2-C#m
1-Dm   1-C#m
3-Dm   3-C#m
3-Dm 4-Dm