In this episode, Richard refers to Gumball as "Blue". Blue was the "lead" Velociraptor in "Jurassic World".
Nicole states that her pay raise means another $10 each month. She also raps that her raise is "three cents on the dollar" (3%). Based on these figures, Nicole's annual gross salary is $4,000. Given 2,080 working hours a year, this translates into approximately $1.92 per hour - significantly under minimum wage.
Gumball, Darwin and Anais "in their natural state" resemble Gremlins (from the sequel movie) with Gumball having a White Mohawk reminiscent of Stripe the Gremlins' leader.