Transformers/Undertale Oneshots ?? (Requests OPEN)

so to get through the lists of requests, we are starting with this lovely story requested by @potat_chip. Hope you enjoy!

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You slammed your fists against the glass, fury sparking through your circuits and cold fear settling deep in your frame. This was supposed to be an easy mission, routine, even.

Confirm the source of the signal.

Rescue any survivors.

Get out.

Simple. Clean. The kind of assignment any bot could handle without a hitch.

But luck wasn't on your side.

The signal had led you to a long-forgotten Autobot outpost, buried deep within Decepticon-controlled territory. A place lost to time after the war, left to rust and decay in the shadow of enemy space. And because of that, it was vital to make sure no one had been left behind... no one still clinging to hope where there was none.

You should've known nothing about this was going to go right.

You were always partnered with Wheeljack. You knew the kind of reckless thrill he got from old, half-buried tech and the pure danger of missions like this. It was part of what made him so good at what he did... but also made him a walking disaster waiting to happen.

Still, you didn't think much of it, not until you set foot inside that worn-down station.

The place looked like it would collapse if you so much as breathed wrong. Walls rusted through, floors buckling, stray cables hanging like dead vines. Every step felt like a gamble.

While you were out doing your job, checking the perimeter and making sure the coast was clear, Wheeljack, predictably, got distracted. Some ancient piece of Cybertronian tech caught his optic, something old and half-functioning, long abandoned for a reason. You'd barely called out a warning before he was already halfway through poking at it.

That's when everything went to hell.

A surge of light. A hiss of pressurizing air. And then, before you even understood what happened, you found yourself trapped inside a containment chamber. Thick glass walls sealed you off from the rest of the room. And worse... You could see it.

Energon.

Leaking fast from a cracked core in the center of the chamber. The sickly glow of it staining the walls, the sharp metallic tang already burning in your vents. Highly unstable, painfully toxic to your kind, it wouldn't take long before it became lethal.

And Wheeljack?

On the other side of the glass. Wide-eyed. Panicked.

Too late to stop it before anything happened.

You could already feel it, the burn clawing at your throat, the sharp sting in your vents, and the searing pain as the tips of your pedes started to melt like acid under the thick, toxic air.

"Wheeljack!" You screamed, your voice raw as you pounded your fists against the glass. The barrier between you and him felt thinner than paper, yet impossibly unbreakable.

A strange, greenish-blue gas filled the chamber, curling around you like a living thing. It clung to your armor, eating away at the plating, leaving dark, corroded patches in its wake. You could see it, your own frame beginning to break down, the toxin sinking into your wires and seams.

The alarms blared around you, harsh and unforgiving. A mechanical voice blasted a countdown into your audio receptors, the numbers hitting like hammer blows against your spark.