Biggest kill in game?

[Heartshine]

So I just uh... singlehoofedly blew up a Raptor. And I'm hoping that my little heartmending filly didn't just become the destroyer of the wasteland. I'm curious what other ponies have done that are semi-ridiculous.

[TyrannisUmbra]

One of my ponies was a pawn in an AI's plot to use a superweapon against... something. We don't know what.

A little bit more explanation:
Snack Cake is a stablepony making her way in the ruins of Buckago with her friends. Being the only member of the party with a PipBuck, it was only natural that she used a PipBuck module we found to see what it was.

Turns out, it was some kind of two-way communicator hooked right up to an AI that "worked" for some company -- Prism Consolidated Industries (PCI for short). Turns out, from the moment she told the AI her name, it "enlisted" her, signing her on as a low-ranking member of the company (of which she is, thus far, the only known living member). So every so often it contacts poor Snacky with instructions to carry out, which have so far been innocuous. One however, did have consequences. This mission was to activate and repair a relay station, which they did... after which point the AI called in and thanked her... and asked if she was willing to be temporarily promoted to "Alpha Special" rank. Not knowing what that would entail, she hesitantly agreed. At which point... it fired the superweapon.

Spoiler: show

[22:50] <Mister_Clacky|GM> Strawberry_Daiquiri manages to get the strut hammered back into spec in short order. TOM speaks through the PipBuck. "Network access restored, Snack_Cake 'D'. Good work. Networking..."
[22:50] <Mister_Clacky|GM> ...
[22:51] <Mister_Clacky|GM> ..
[22:51] <Mister_Clacky|GM> .
[22:51] <Mister_Clacky|GM> "Temporary field promotion, Alpha Special. Affirmative?"
[22:52] * Blackberry_Jam nods to Snack_Cake. "Affirmative."
[22:53] * Snack_Cake hesitates a moment. "Affirmative...?"
[22:54] <Mister_Clacky|GM> "Affirmative?"
[22:54] * Snack_Cake nods slowly. "Affirmative."
[22:56] <Mister_Clacky|GM> " Snack_Cake, Delta clearance temporarily field promoted to Alpha Special. Targetting affirmed on Alpha Special clearance. Triangulating." A secondary dish swivels nearby.
[22:57] <Mister_Clacky|GM> ...
[22:57] <Mister_Clacky|GM> ..
[22:57] <Mister_Clacky|GM> .
[22:58] <Mister_Clacky|GM> "Target locked. Warming..."
[22:58] * Scrap looks around at the dishes moving having no idea what's going on.
[22:58] * Snack_Cake has no idea what's going on either. She checks the terminal's screen for clues as to what's happening.
[23:00] <Mister_Clacky|GM> "Initiating firing sequence."
[23:00] * Blackberry_Jam looks around at the moving dishes. "Firing? What the fuck is it firing? Snack, what the hell is it doing?"
[23:00] * Strawberry_Daiquiri dives for cover
[23:01] * Snack_Cake doesn't know! "TOM..! What's going on!?"
[23:03] <Mister_Clacky|GM> "Firing" A coherent beam of light streaks out from the top of Prism Tower. It boils through the cloudcover to the west.
[23:04] * Blackberry_Jam watches in awe as the beam of light probably disintigrates whatever was over there. "What the..."
[23:04] <Mister_Clacky|GM> The cloudcover flashboils, leaving a clear view of the stars, and in the distance the falling of debris.
[23:05] * Scrap jumps a bit as it fires. Before starting slackjawed in direction of fire.
[23:05] * Snack_Cake is wide-eyed. She has no idea what's going on! But it doesn't look good!
[23:05] <Mister_Clacky|GM> "Field Promotion rescinded. Thank you for your cooperation Snack_Cake 'D'."
[23:06] * Snack_Cake looks back to her PipBuck. "What WAS that!? TOM! What did you do...?"
[23:07] <Mister_Clacky|GM> "That information is beyond Delta clearance."

That same group went to the Spirit World and defeated both a hydra (Manifestation of Sin), and some kind of devil-dragon.

Other than that, I have a unicorn who has cheated death not once, not twice, but at least 3-4 times.Most of these were living with single-digit HP, but one of them was a little different. She lived with single-digit HP, then subsequently went into cardiac arrest when her Buck wore off and sent her HP below 0. She succeeded her END check, so she was able to live long enough for the party to drag her to a trained doctor.

And in G9, the group fought and killed some kind of giant monstrous abomination.

I've had a ton of crazy moments... but those ones stand out the most.

[Viewing_Glass]

Hrm... let's see..

For my characters:

Viewing Glass (Unicorn Wizard type, level... 16?) knocked out Red Eye's Cyberdragon that was attacking Fillydelphia. Three times. Before the Enclave put it out of its misery. Then he took the head home with him.
Shadow Step (Unicorn Cook, level 10) went Bumper Sword-to-Claw against one of Tirek's Dragons and then a bunch of raiders before an ally killed Tirek.
Strange Brew (Zony (Earth Pony Base), level 8) took a sickle and went sickle to... mouth? against a Size 1 Tainted Abomination. When she won, she ate its heart (That was the stupid part). Her high END and LCK saved her from becoming another tainted abomination.
Swift Strike (One Trick Unicorn, level 4) decided to joust into a Shoggoth. Several times. With the Unicorn Jousting perks. When he won, he mourned the loss of his gear (stupid gear eating acid death explosion).
Firefly (Pegasus Filly, level 8) defeated a powerful evil spirit by convincing her friends and some zebra to sing, thus proving that:

• 1.) Ponies song is the most terrifying weapon ever.
• 2.) Group productions of pony songs are even more terrifying.
• 3.) Oh, and Friendship is Magic.

[The Custodian]

Biggest kill? PLenty of size one monsters in my Sunday stable game.... There is bigger but it was not necessarily killed.

Ursa Major...

It wasnt a party vs 1 fight though. More like, kill the 4 evil size 1 creatures that were around it and avoid the ursa at all costs or else you die. Once the 4 were dead the Ursa was free and went on its merry way (and off the stable mountain top where it was bound to). Still. One of the baddies tried to toss a party member into the ursa and he barely managed to get out alive.

[AMARDA]

ALL HAIL HEARTSHINE! Death Filly of the wastes!

[Rabbs]

Spoiler: show

[Heartshine]

Well, now I feel better that I'm not the only one whose done ridiculous things. I figured I wasn't, but that night I was like "I just single hoofedly took down a Raptor. This is weird."

Also, seeing Shoggoth mentioned in this thread reminds me that I am so glad that Xjuan hates the Cthulu universe. XD

[f1r3w4rr10r]

No me personally, but we already had our Zebra kill a dragon by jumping on it from an airship, pinning it's wing and letting it fall in a mine field.

[AMARDA]

Also, there was this one time when Xavi punched a Giant Robot to death, and could have possibly set it's Balefire reactor to overload. Stupid Doombunny and his lies and egging on of the poor drugged out Zebra.

[TicTac]

Probably... hmm. Well I'd say it was the KRAJ from G9 When we fired a B.E.L. into the thing and didn't do a damn thing. XD And then the other B.E.L. we had broke on a critfail. Whoops.

And then there was the Grue from Irrelevant group that had 1,215 HP and 25% DR. It took 5 rounds of combat to bring the damn thing down, and we were crit-passing rolls left and right.

And then there's... whatever horrors TenMihara has planned for the G13 endgame. I shudder just thinking about it.