Justin creates a Frankenstein-type monster to keep Alex out of his room, only for it to backfire when the monster and Alex become friends.
Did You Know?
In order to bring his FrankenGirl creation to life, Justin uses a spell to create 1.21 gigawatts of electricity. This is a reference to "Back to the Future", in which Doc Brown tells Marty McFly that the DMC DeLorean requires 1.21 gigawatts of electricity in order to power the flux capacitor that allows the car to travel through time. See more
References Back to the Future