Moving background with character

what i am trying to do is get the background to move with the character

i checked out a few tutorials…and they kinda helped…but not enuf

heres the deal…i have a character that can fly…and when the character goes upward…thebackground moves down to expose sky…then eventually black space with stars…

does that make sense?

also i want the background to stop…like when the background ends…

help me please

ps…the character moves with the arrow keys…and MX2004…or MX…whicher…