The page’s title is a Deep Purple reference, but I actually know it from Al Yankovic’s first polka medly and Dance Dance Revolution.

I put so much thought into how they would shrink, and if the room would shrink with them, and who should stay upstairs in the lab, that I didn’t realize that I hadn’t actually drawn a comprehensive shrinking sequence until the pages were already published. I would have totally reworked this sequence so that it’s obvious they are all shrinking relative to the surrounding lab equipment. As it stands, it looks like Flint is seeing something off-panel, when he is actually looking at the shelf behind him as it gets higher and higher.