The hive mind Unity is, in many ways, the perfect woman for Rick.
Rick and Morty hide out at his house while fugitives for freeing Fart, and Gearhead betrays Rick by calling the police.
The connection being that Xenon and Gold are both chemical elements, and 'blum' from Goldblum is pronounced as bloom.
The Zigerions being uncomfortable with nudity is a reference to Cross' character on having a similar issue.
I get the feeling there will be more guest stars on Rick and Morty as it continues.
He stabs Rick in the chest at the bar with the invincibility shield.