Mummies and Grinches

Can you guess how to play this game? Because I can't.

Abe's rules:

We got to run away from the mummies and the grinches if they come closer.

We pretend they will eat us, so we have to run.

If you run into or touch the wall then you are dead.

If a mummy catches you then you are dead.

If a grinch touches you then you are dead. 

Mummies are badder than grinches because if they see you then you are dead.

Everyone is a mummy or grinch.

I wasn't "alive" for more than two minutes all morning.  

Like Abe said, "You need to practice."