When Rick says to Phoenix Person that he figured they'd be "in Venice with a dwarf in a raincoat" this is a reference to the movie Don't Look Now (1973).
During the post-credits scene, an animation version of late show producer Mike Mendel makes a cameo walking his dog. This marks the second time he appears this way. He was shown in the end credit tribute of S4E1: Edge of Tomorty: Rick Die Rickpeat.
In the scene with the two bug guards talking, one says "Why can't I meet your parents? Are you embarrassed of me?" and the other replies, "No, of them!" This is a quote from the movie Real Genius.
In the battle scene between Rick and Phoenix Person, the heavy blows that transition into a slow motion X-ray showing the damage done, is a reference to Mortal Kombat's X-ray/Krushing Blows.
At one point in the after credits scene two garbage men scream in horror. The sound effect used for the man on the right is from the video game Dungeon Keeper (1997). (Specifically: man1tor1.wav, used when torturing male human hero characters.)