Quite a simple song to play, yet very cool.
The chords I use are all barre, with the root on the 6th string.


Intro riff:
E|--------------------------|
B|--------------------------|
G|--------------------------|
D|--------------------------|
A|--------------------------|
E|--1--1--3--1--4--1--6--4--|


F
All aboard Cleopatra purrs... aha
Pens and swords, the gun's mightier
A mane of gold like a flame from a skull
Upon the wings of an angel
We'll leave this hellhole

Little boy lost down devil's alley
The mad Alsatian can almost taste me
Merrily merrily in terror I flee
Into the glow of traffic like a lava flow you'll see me

G
Every time I dance
Every time I dance with you
     Bb
I'll stagger out the nightclub black and blue, battered and bruised
  F
I care not
      Ab
But I care not
Bb
Shotgun
F
Shotgun
Bb
Shotgun

F
All aboard Cleopatra purrs... aha
Pens and swords, the gun's mightier
A mane of gold like a flame from a skull
Upon the wings of an angel
We'll leave this hellhole

Bb
Mack the Knife, strolling down the street
The Surgeons in the slaughterhouse, spice their diced meat
F
Merrily merrily in terror I flee
Merrily merrily in terror I flee

G
Every time I dance
Every time I dance with you
Bb
I'll stagger out the nightclub black and blue, battered and bruised
F
I care not
Ab
But I care not
Bb
Shotgun
F
Shotgun
Bb
Shotgun

F
I care not
I care not
Ab
But I care not
Bb
Shotgun
F
Shotgun
F
Shiny gun, shiny gun
Shiny gun, oh boy
Shiny gun, shiny gun
It's time for the showdown