"LOOK UP IN THE SKY!" Luna shrieked, "WHAT THE BUCK IS THAT NEXT TO MY MOON?!"
"Aaaaap apa apapapapapap--" the giant mouth on a second moon floated across the sky. It took a bite out of the first moon. "Apapapapapapapapappap! Appapapapapap--"
"Tell it to stop, Celly! It's eating my moon!"
Celestia rolled her eyes and lit her horn, shooting a rolled-up newspaper at the moon-mouth thing with pinpoint accuracy. It proceeded to explode, because screw logic, we've already got a giant equivalent of Pac-Man in the sky now.