Secrets/Easter Eggs

There are hidden Secrets/Easter Eggs found somewhere in Demolition Crew.

Trivia

 * A giant rock references to Spongebob (and later with Squidward) driving on it to deliver pizza for Tom in the episode "Pizza Delivery" from Spongebob Squarepants series.
 * The Fireworks reference the previous game, Destroy the Neighborhood, as The Mayor, Hobo Joe, attempts to sell you fireworks. Hobo Joe sold the same fireworks in Destroy the Neighborhood.