"Mario Kart" - Anne, Sprig, and the Wrecker have a beetle race that appears highly inspired by the Mario Kart franchise. Later in said race, the Wrecker uses a blue, spiky bug that explodes once it runs into Anne and Sprig, a clear reference to Mario Kart's Blue Spiny Shell item.
"Check Yourself" - One of the two racers before Anne's race mentions how legend says the Wrecker will "wreck yourself if you don't check yourself", referencing the lyrics to the song Check Yourself by Ice Cube.
Anne gives the Calamity Box to Hop Pop who latter buries it next to the Plantar house.
The Bazaar merchant Valeriana has lots of artifacts that bare the same symbols as the ones on the Calamity Box.