I told you to go right

The band stopped playing as the 12 of us entered town with Brutalight and myself at the front. Ponies all around cleared a space, and simply stared in sheer terror and surprise at what we had become; 3 cyborgs, a backwards talking mutant, a non-walking psychopath that eats ponies, 2 ponies of almost similar nature, a pirate with a frying pan, one of the world's greatest doctors, a drug addict, a severe kleptomaniac, and a loud voiced creep. It was literally the most awkward moment in the world when we arrived in the centre of the dance floor at 9:30PM, surrounded by costumed ponies. Finally, I broke the silence. I made myself teleport right next to Mayor Mare, who was dressed like a clown.
"WHAT'S UP?" I practically yelled in her ear as I hovered next to her upside-down. I began chuckling until I landed headfirst onto the floor with a 'CRIT' noise ringing out loudly as it occurred. The Mayor was recoiled away and everyone else was just staring at me. When I was on both feet, I stared her in the eyes with one of my trademark 'Thunder Grins'© (I.e. Smiling, with an eye twitch. I then leapt back over to the other guys, who were smirking at my spectacularly ridiculous antics.
"W-Well..." began Mayor Mare, adjusting her afro and clearing her throat. "...erm...fillies and gentlecolts, I give you the winners of the Nightmare Night Costume Contest!" The crowd, not really knowing what else to do, simply stomped their hooves and cheered in approval. We 12, minus Dok, simply looked around in confusion, but when the band began playing and Everypony got back to dancing, our concerns were ignored.
"They have no real idea what happened to us, do they?" I asked Fluttershout over the laughs. The mare simply shrugged. "Huh." I turned to Brutalight, who frowned back at me as she normally does. "Well, that went well." I said.
"Yes, so well, in fact, that I have a migraine." she snarled, pushing her face not even inches from mine and it was actually quite terrifying. "So, to spare the miserable little lives of these ponies, I'm going home to get some silence and send Celestia some letters about what's happened. And you're coming with me."
"What, Shiela?" I laughed. Suddenly, my neck clicked sharply and slightly painfully whilst Brutalight smirked victoriously. "But of course, Madame. Lead the way, my dear."
Fuck you, Gentle.
But of course.

"Now then, you take a seat, and I'll be back in half an hour to make sure you're still there." Brutalight ordered. GentleSpy's spirit immediately made me nod, and sit down on a chair. The mare rubbed a hoof in my mane. "Good boy. Stay, or I'll remove your head." As the mare went up the stairs to where her room was, I flicked a light on above the table, and put down my Fedora, Ambassador, Dead Ringer, and removed the Cloak and Dagger from around my wrist. I placed these all on the table, and set about disassembling and cleaning the Ambassador. Just then, I got a call.
Hi, Thunder!
Hi, Lulu!
It's been a while since I spoke to my lover, so how've you been? Anything exciting happen?
Well...umm...
Go on. Tell 'er, mate.
Ohh, Thunder, who's your new evil spirit with you as a host?
I'm the Christian Brutal Sniper, Shiela! I'm the best! An' this here's my mate GentleSpy!
I extend my greetings. I must say, you're looking simply delightful, Miss Luna.
Ah, haha, well, I, ah, wow. Heh. Thank you.
No thankings necessary, m'lady. I'm French, we're all gentlemen who go on strike.
Yep, that sounds like the modern-day French, minus the gentlemanly part.
You know the French?
These are guys from Earth. I know all the damn places there, and lived just over the pond from France. So I think I know a bit about the damned French, especially considering that we English have hated the French for most of our rainy existence.
We're discussing gentlemen? Ooohh, Shining, dear! Join in, quickly!
Cadence! Haven't spoken to you for ages!
Hey there, Thunder! How's life?
It was good until you stole my coloured text. Anyway, it's cool. I've been possessed by 3 spirits, Nightmare Moon included, that can change my form and give me powers. Cadence, Shining, I'd like you to meet GentleSpy and Christian Brutal Sniper.
Good day.
What's up, doc? Heheheheheheh!
Evening, you two. Enjoying the mind of Thunder?
Of course.
I probably won't stay 'ere long; maybe I'll possess some other mongrel, but this is alright.
If you want somepony to possess, I'd recommend Sergeant Bush Whacker. He's worked with Thunder, and is basically you. But slightly more physical.
You insinuatin' that some other chump's more violent than me?
Nopony is more violent and crazy than Thunder.
Wow, this really brings out a migraine. Ahhhh, the pain of containing 4 evil spirits and having 5 regular visitors in my head. Ow. Cough cough. Implying pain.
I'll bet it does, and that's why I like doing this. And hello, GentleSpy.
Ahhh, Celestia. It's been a while, yes? I see you've been keeping trim?
Take over Thunder's body and I can keep exercising in your company.
Rawr.
Oh for god's sakes. Celestia, what do you want from me?
A Stout Shako for tw-
Finish that and I'll have your neck with my new Christian Brutal powers of pulling an infinite stock of battleaxes from nowhere.
Don't forget the radio, don't forget that!
Ahh, yeah, and my ability to spawn a radio and make it play Millionaire's Holiday while I dismember shit.
I can also possess his body and make him a one with the mares.
Oh yeah, and apparently I can be a brilliant seducer.
You already have my perfectly rounded ass that vibrates and tastes like wild berries.
Poomph.
Poomph.
Poomph.
Piss, that got me on.
And me.
...
My own sister? Really? My chambers, tonight.
WHY DO I ALWAYS GO HOME AT THE WORST TIMES?!
I feel ya, bro.
Oh, that reminds me, Shining, your sister got possessed by Weaselcake and Christian's other self and now she calls herself Brutalight Sparcake, and has wings and a demonic voice.
Oh...well. Sounds shit for her, then.
Not as bad as Applejack has it; she has an obsession with Left 4 Dead Pills now. Plus, Solar is now a...umm...
What?
What did he do this time?
Oh god, this'll be funny.
...a Vagineer.
AHAHAHA-
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