How does Buddhism describe God? I've encountered many ideas about the identity of God, ranging from the omniscient, omnipresent, omnipotent as in Judeo-Christian cultures, to that of one who has reached enlightenment. Is it suggested that Buddha is God or that Buddha is one who has attained enlightenment, leaving breadcrumbs behind for others to follow and that another being is God. Or does Buddhism reject God? Or something else that I'm missing?
For Buddhism, If you define God as someone who created the world, God does not exist.

But if you define the God as someone who is superior to other beings, then god exist.

However, such a god exists only for a period of time, then one day the god will go down to another level (I mean rebirth) as an angel or human.

The Lord Buddha is not a God. 

In Tripitaka, there is a lesson about how the world is created and how god came to exists.