Blood

It crawled through the vents, haunting the facility. Not a single Soul is safe from it's whims, the entire structure closed down to prevent the creature from escaping into the innocent world outside. They have created an abomination.
It's intelligence only seems to grow, to the point that it seems to take a sadistic pleasure in tormenting it's victims before shredding them into corpses.
How long until it figures out how to flee the complex?
Have they doomed humanity already?

Why is it obsessed with that Mario plushie??