Obstacle Corpse
When you're stuck in a pile of dead people and you're the only one left, so you just have to crawl out and hope no one sees you.
He was the only one left in the grave and had to crawl out like a worm with a death wish.
She was covered in dirt and dead bodies and had to shuffle out like a zombie with a broken leg.
The last survivor had to crawl out of the pile like a giant meatball in a sauce of blood and guts.