Leaked Horror in The Fallen Magic Kingdom

A recent terrifying discovery inside the ruins of Walt Disney World has been leaked to the internet by an unknown user. 

It shows footage from inside the park, where a team of soldiers are on patrol, when suddenly, they come under attack by an unknown entity. Despite their attempts to harm the beast, it appeared unphased by bullets or grenades, including a direct explosion in its face. When the soldiers attempted to flee, they were slowly picked off one by one, but not killed on camera, rather taken by the monster to what remains an unknown fate. Slowed down footage in the few hours the video was widely available show whatever the creature is as having morphed features resembling that of a large rodent. Perhaps...

A mouse?

This was originally classified, but despite the government having the video taken down in all known locations quickly, the knowledge of whatever this is lurking in the Magic Kingdom is out and about now. The National Government and Marxopol have sealed off the entirety of the park and postponed the repairs until whatever this entity is can be tamed, removed, or eliminated.