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--|

FAll (133211@1)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

GEvery (320003@1)time I dance
Every time I dance with you
     BbI'll (x1333x@1)stagger out the nightclub black and blue, battered and bruised
  FI (133211@1)care not
      AbBut (xx1114@1)I care not
BbShotgun (x1333x@1)FShotgun (133211@1)BbShotgun (x1333x@1)
FAll (133211@1)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

BbMack (x1333x@1)the Knife, strolling down the street
The Surgeons in the slaughterhouse, spice their diced meat
FMerrily (133211@1)merrily in terror I flee
Merrily merrily in terror I flee

GEvery (320003@1)time I dance
Every time I dance with you
BbI'll (x1333x@1)stagger out the nightclub black and blue, battered and bruised
FI (133211@1)care not
AbBut (xx1114@1)I care not
BbShotgun (x1333x@1)FShotgun (133211@1)BbShotgun (x1333x@1)
FI (133211@1)care not
I care not
AbBut (xx1114@1)I care not
BbShotgun (x1333x@1)FShotgun (133211@1)FShiny (133211@1)gun, shiny gun
Shiny gun, oh boy
Shiny gun, shiny gun
It's time for the showdown