Mortal Kombat: Shaolin Monks Easter Egg - It's a Bird, It's a Plane, It's......it's??

When Liu Kang and Kung Lao are on the platform above the pit, if you look in the sky and wait long enough you will see a shadow of a witch on a broomstick and if you wait longer and keep the camera up, you will see santa and his reindeer flying in front of the moon.