I used Unicron showing up as an excuse to remove most of the characters from the background. I could get carried away with how many of them I added to the story and they didn’t add anything by standing there.
My personal favorite line is Unicron saying he was unprepared for Maxi-Megs’ brutal onslaught of hand slapping.
The commentary panel had to have been the first thing that came to mind at the time. I couldn’t have put too much effort into it.