Batman related stuff: The fight words from the 60's, mentioning the joker using Prince music, the off the wall but real villians Pop culture stuff: Gremlins(using them for a Twilight Zone reference too) , Voldemort, Daleks

I loved all that stuff, plus at the beginning when Batman is doing the voice over(I knew from that this was going to be so much fun!) I found a list online: https://www.inverse.com/article/27763-lego-batman-movie-easter-eggs-secrets

What are some of the references you liked in the movie?