When Mickey Hargitay's credit appears, Crow quips "He was originally named Mortimer Hargitay." Walt Disney's original name for Mickey Mouse was Mortimer Mouse, but his wife didn't like it.
Tom says "Eat more chicken!" when a herd of cows appear onscreen. This is a nod to the fast-food restaurant-chain Chic-fil-A advertising campaign of cows telling potential customers to "Eat mor chikin [sic]" that began in 1995.
The stinger is Hercules flopping after being hit by one of the Hydra's heads.