The first shot of the episode depicts a street sign reading "Boyd Ave." This is likely a tribute to Boyd Kirkland who wrote and produced 'X-Men Evolutions.' It could also refer to Boyd Wilson, a character from the X-Men comics.
Rover The Sentinel can only speak one word, "Destroy!" with varying inflections. This may be a reference to Groot from Marvel's Guardians of the Galaxy, who is only able to say "I am Groot" in much the same way.