Bubba Ganter portrayed Bunny in both this episode of Sam and Cat as well as in Game Shakers. And both times Bunny is the assistant/ friend of Kel Mitchell's character.
Cat makes a reference to John Lennons song "Give Peace A Chance" When she says "No Lemon War, Give Peace A Chance". Also that Lemon rhymes to Lennon, Giving a hint Cat was referring to him.