When the bats come down the chimney, it is a reference of the scene in Alfred Hitchcock's The Birds when the sparrows fly down the chimney.
Chuck says "Uh oh!" like Scooby ("Ruh-roh!")
when Nick is on the water, "Duelling Banjos" is heard
"I think we need a bigger boat."
Clips shown for the review.
"Chariots of Fire" plays as Chuck prepares and begins to powerwalk