That Retro Guy

As the heroes fight, someone climbs up the ladder from the building roof to the tower roof. 
 
GM:  This is what my daughter was apologizing for suggesting to me.  He looks like a bad Elvis impersonator, complete with the white sequined jumpsuit.  And fangs.
Maker:  Vampire Elvis?!
Vampire Elvis:  Fang you.  Fang you very much.  (turns to Circe)
Well, curse-a my soul, what's a-wrong with me,
I'm itching like a bat on a fuzzy tree.
My friends say I'm acting wild as a wolf.
I'm in love, huh, I vant your blood...
Maker:  Someone take him down.  Now!  (OOC)  Your daughter should apologize.  She should know better than to give you ideas like that.
 
The duchess' white mage (invisible to sight and hearing groups and radar) tries to dispel the extra magical defenses Malarky gave his teammates, but falls just shy.  Malarky (not knowing the details of the mage's veil spell) switches his magic pool to give him Active Sonar.  While he still doesn't locate the white mage, he does notice something large hovering about 30m over the tower.  It's a cloaked VIPER Cockatrice flying personnel carrier.
 
Shadow Boxer:  That's how the duchess and her friends got so close!  Crap!  Someone needs to take that thing out before it opens fire, or I'm toast!
GM:  Why?  The Cockatrice doesn't have any weapons.
Shadow Boxer:  Oh, I thought it was that thing with the 5d6 RKA laser. 
GM:  Nope.  The flying APC is totally unarmed.  (pause)  Though the five Air-Cav agents flying out of it are carrying laser rifles...
 
Despite the big-bad Duchess, the nasty Banshee, and the invisible White Mage all being nastier threats, three of the seven heroes (Maker, Circe, and Nexus) concentrate their attacks on Vampire Elvis.  Each attack provokes a new song from him.
 
Vampire Elvis:  You ain't nothing but a blood hound, dyin' all the time.
You ain't nothing but a blood hound, dyin' all the time.
Well, you ain't never been bitten
And you ain't no friend of mine.
 
Since the duchess bit me,  I've found a new place to dwell,
Down at the end of Lifeless Street at Undead Hotel, oh baby.
You make me so hungry, baby.  I feel so hungry.
No matter how hungry, I can't die.
 
Well it's one for the money,  two for the show, three to get ready, now go bat go,
But don't you step on my blood red shoes.  You can do anything but lay off my blood red shoes!
You can stake my heart, stick a cross in my face, spray holy water all over the place.
Do anything that you wanna do, but uh, huh, honey lay off of them shoes...
 
Maker:  Aaargh!  Make him stop! 
 
The heroes finally put Vampire Elvis down.
 
Vampire Elvis:  Elvis has... left the building...  (thud)