That gives me an idea... >=D

Unable to get to ethereal plane known as Heaven, the spirits of the people that died during the Rabid Monkey assualt were unable to travel to eternal slumber. They started roaming the earth like zombies, terrorizing all in their way. Without the earth's mightiest heroes to protect them, the people of the earth were helpless against these undead spirits. Some even flew to the moon of some uncharted planet to try and take out the problem at it's source!

Feeling gulity yet? XD