Green shells and red shells were extremely common to find during Mario Kart racing tournaments, but outside of them, they were a race occurrence. So when the Coconut Mall is populated by both kinds of shells during a day involving no racing, something surely is up.
"Where did all these shells come from?" Toad gawked as he shook his head, placing his hands on his face.
Koopa folded his arms as he shook his head, murmuring. "Well, I'll tell you one thing. I have never seen so many shells in one place outside a Mario Kart race..."
The shopping Nokis and Miis weren't so lucky, as they were continually hit by the shells, forcing them to run out without even buying anything they desired. The Pianta police officers tried their best to stop the shells, but there were too many of them to grasp, forcing them to surrender as the shells kept coming.