Ever played Sonic-The Hedgehog, or Street Fighter?This should be easy then.
This effect was first used in an arcade game called Moon Patrol.It is achieved by moving sprites or layers of sprites independently of each other and/or the background to create a sense of added depth. It works on the same principle that lies behind a common error that you might be prone to commit in a chemistry lab.
And I’ll keep the comic book reference out this time.
What is this principle known as?